JP2020057374A - Computer, computing method, and program - Google Patents

Abstract

To provide a computer capable of obtaining a total value of calculation results relating to tax calculation by simple operation even if tax-included calculation and tax-excluded calculation are mixed.SOLUTION: A calculator 10 executes tax-included calculation based on a tax rate 1 or a tax rate 2 in response to an input of an execution instruction of the tax-included calculation with the tax rate 1 or the tax rate 2 by a tax-included 1 calculation key 11b or a tax-included 2 calculation key 11c, and executes tax-excluded calculation based on the tax rate 1 or the tax rate 2 in response to an input of an execution instruction of the tax calculation with the tax rate 1 or the tax rate 2 by a tax-excluded 1 calculation key 11d or a tax-excluded 2 calculation key 11e. The calculator 10 causes a display unit 12 to display a tax-included calculation result, which is a numerical value related to the tax-included calculation result based on the tax rate 1 or the tax rate 2, and a tax-excluded calculation result, which is a numerical value related to the tax-excluded calculation result based on the tax rate 1 or the tax rate 2, and a tax calculation total value, which is total.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a computer, a calculation method, and a program.

  2. Description of the Related Art In recent years, some calculators (calculators) have a function of performing a tax-inclusive calculation and a tax-excluded calculation using a set tax rate. For example, the calculator described in Patent Literature 1 performs a tax-inclusive calculation using the numerical value according to a specific key operation after inputting a numerical value, and performs any of a tax-inclusive amount, a tax-excluded amount, and a tax amount related to the tax-inclusive calculation. The two are displayed simultaneously on the screen.

JP 2017-174225 A

  As described above, the calculator according to the prior art can perform the tax-inclusive calculation and the tax-excluded calculation using the set tax rate. However, the numerical value (tax-included amount, tax-excluded amount and tax amount) obtained by the tax-inclusive calculation and the tax-inclusive calculation are included. In addition, it is not possible to acquire the total value with the numerical values (tax included, tax excluded, and tax) acquired by the tax exclusion calculation performed by a simple operation.

  The present invention has been made in consideration of the above problems, and even if tax-included calculation and tax-excluded calculation are mixed, it is possible to obtain the total value of the calculation results related to the tax calculation by a simple operation. It is an object to provide a possible computer, a calculation method, and a program.

  In order to solve the above-mentioned problem, the calculator of the present invention executes the first tax-included calculation using a numerical value as a tax-excluded amount in response to an input of an instruction to execute the tax-included calculation, and the result of the first tax-included calculation Is obtained as a first tax-included calculation result, and the first tax-excluded calculation using the numerical value as the tax-included amount is executed in response to the input of the execution instruction of the first tax-excluded calculation, 1. Acquire and calculate a numerical value related to the result of the tax-excluded calculation as the first tax-excluded calculation result, and in response to the input of the execution instruction of the total tax calculation display, the first tax-included calculation result and the first tax-excluded calculation result And a control unit that causes the display unit to display a total tax calculation value that is the sum of

  Further, another calculator of the present invention executes the tax-inclusive calculation using a numerical value as a tax-excluded amount in response to an input of an instruction to execute the tax-inclusive calculation, acquires a tax amount related to the tax-inclusive calculation, and In accordance with the input of the execution instruction, the tax-excluded calculation using the numerical value as the tax-included amount is executed, the tax amount relating to the tax-excluded calculation is acquired, and in accordance with the input of the execution instruction of the total tax calculation display, the tax-inclusive amount is included. There is a control unit that causes a display unit to display a tax amount that is the sum of the tax amount related to the calculation and the tax amount related to the tax exclusion calculation.

  ADVANTAGE OF THE INVENTION According to this invention, even if the tax-included calculation and the tax-excluded calculation are mixed, it becomes possible to acquire the total value of the calculation result regarding those tax calculations by a simple operation.

The front view showing the appearance composition of the tax calculator in this embodiment. FIG. 2 is a block diagram showing a configuration of an electronic circuit of the calculator according to the embodiment. 6 is a flowchart for explaining the operation of a tax calculation function of the calculator according to the embodiment. 6 is a flowchart for explaining the operation of a tax calculation function of the calculator according to the embodiment. 6 is a flowchart for explaining the operation of a tax calculation function of the calculator according to the embodiment. 4 is a flowchart for explaining the operation of the memory function of the calculator according to the embodiment. FIG. 4 is a view showing a specific example of an input operation and a display for explaining a tax calculation function of the calculator according to the embodiment. The figure which shows the specific example of the numerical value memorize | stored in the memory for tax calculation in this embodiment. The figure which shows the specific example of the numerical value memorize | stored in the memory for tax calculation in this embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a front view showing an external configuration of the tax calculator according to the present embodiment. In the present embodiment, the tax calculator is realized as a calculator 10 dedicated to calculation.

  In addition, the tax calculator is configured as the calculator 10, and has a calculation function (a calculation processing program is mounted), such as a personal computer, a tablet computer, a smartphone, a mobile phone, a touch panel PDA (personal digital assistants), an electronic book, It can be configured as a portable game machine or the like. It should be noted that a tax calculator with no physical keys (buttons) such as the calculator 10 displays a software keyboard similar to the keys of the calculator 10 and executes calculation processing in accordance with key operations on the software keyboard. .

  The calculator 10 shown in FIG. 1 will be described. The calculator 10 in the present embodiment is provided with a tax calculation function for calculating a tax based on a plurality of tax rates (hereinafter, two tax rates of a tax rate 1 (for example, “10%”) and a tax rate 2 (for example, “8%”)). Have been.

  A key input unit 11 including a plurality of keys and a display unit 12 are provided on the front of the housing of the calculator 10. The key input unit 11 is provided with numerical keys, calculation keys, tax calculation function keys, and function keys. The numerical keys include, for example, a plurality of keys corresponding to [00] [0] to [9]. The calculation keys include, for example, a [+] (addition) key, a [-] (subtraction) key, a [x] (multiplication) key, a [÷] (division) key 11h, and a [=] (calculation execution) key. Includes corresponding keys. The tax calculation function keys include a tax calculation key (1 calculation key including tax 11b, 2 calculation key including tax 11c, 1 calculation key without tax 11d, 2 calculation key without tax 11e), and a tax calculation total key 11f. The function keys include, for example, an all clear key ([AC] key 11a), a clear key ([C] key), a plurality of memory keys ([M +] key 11m1, [M-] key 11m2, [MR] key 11m3, [MC] key 11m4), a grand total key ([GT] key), a root key ([√] key), a [%] key 11g, and the like.

  The tax included 1 calculation key 11b is operated to input an instruction to execute a tax-inclusive calculation using the tax rate 1. Similarly, the tax included 2 calculation key 11c is operated to input an instruction to execute a tax-inclusive calculation using the tax rate 2. The tax-excluded 1 calculation key 11d is operated to input an instruction to execute a tax-excluded calculation using the tax rate 1. Similarly, the tax exemption 2 calculation key 11e is operated to input an instruction to execute a tax exemption calculation using the tax rate 2.

  The tax calculation total key 11f is operated to input an instruction to display a total sum of the calculation results of the tax calculation. When the tax calculation total key 11f is operated, a post-tax total mode (to be described later) is set to ON, and the grand total as the calculation result of the tax calculation can be displayed by switching between the tax-included amount, the tax-excluded amount, and the tax amount. it can.

  The memory key is a key operated to use a memory function. In the memory function, the displayed numerical values and the data of the calculation results are temporarily stored in a nonvolatile independent memory area (an independent memory area 22h, an independent tax rate 1 memory area 22f, and an independent tax rate 2 memory area 22g described later). The data is retained even when the [AC] key 11a or [C] key is operated and the power is turned off. The calculator 10 according to the present embodiment has a memory function (hereinafter, referred to as a normal memory function) for performing processing on numerical values to be calculated in normal calculation (four arithmetic calculations, etc.) and tax calculation, and a result of tax calculation. It is possible to execute a memory function (hereinafter, referred to as a tax calculation memory function) that executes a process on a total value obtained by summing the numerical values. The tax calculation memory function is enabled when the post-tax total mode is set to ON.

  In the normal memory function, one numerical value is processed for one operation of the memory key, and in the tax calculation memory function, for example, a plurality of values stored as a calculation result of the tax calculation in one operation of the memory key are stored. Is processed. The plurality of numerical values to be processed by the tax calculation memory function are, for example, different tax rates according to a plurality of tax rates (tax rate 1 (“10%”) and tax rate 2 (“8%”). The total value and the total value of the total value calculated at each of the multiple tax rates shall be applied.The total value by tax rate shall also be applied to the numerical value indicating the total amount including tax, the total amount excluding tax, and the total amount of tax. In addition, the total sum includes tax-included total amount, tax-excluded total amount, and tax total amount calculated at each tax rate. Target numerical values.

  The plurality of memory keys are used for both the normal memory function and the tax calculation memory function. When the normal memory function is executed, the independent memory (independent memory area 22h of the memory 22 described later) is processed according to the operation of the memory key. When the tax calculation memory function is executed, the tax calculation becomes independent according to the operation of the memory key. The memory (the independent tax rate 1 memory area 22f and the independent tax rate 2 memory area 22g of the memory 22 described later) is to be processed.

  [M +] key 11m1 and [M-] key 11m2 are keys for inputting an instruction to update a numerical value stored in the independent memory or the tax calculation independent memory with a numerical value to be processed. The [M +] key 11m1 is operated to input an instruction to add a numerical value to be processed, and the [M-] key 11m2 is operated to input an instruction to subtract a numerical value to be processed.

  [MR] key 11m3 is a key for inputting an instruction to read and display a numerical value stored in the independent memory or the tax calculation independent memory.

  [MC] key 11m4 is a key for instructing deletion of a numerical value stored in the independent memory or the tax calculation independent memory.

  The [%] key is used not only for calculating the percentage, but also for starting a tax rate setting process for setting a tax rate used in a tax calculation executed in response to an operation of the tax calculation key by a user operation. You. In the tax rate setting process, for example, the tax rate 1 used for the tax calculation executed in response to the key operation of the tax included 1 calculation key 11b and the tax excluded 1 calculation key 11d, the tax included 2 calculation key 11c, and the tax excluded 2 calculation key 11e It is possible to set the tax rate 2 used for the tax calculation executed according to the key operation.

  The round selector 11y sets a calculation method of the fraction processing. For example, the “F” setting specifies the display of the maximum displayable digit including the decimal part on the display unit 12. The “CUT” setting specifies the truncation of the digit specified by the decimal point selector 11z. The “5/4” setting specifies the rounding of the digit specified by the decimal point selector 11z. The decimal point selector 11z sets how many digits after the decimal point are displayed on the display unit 12. The “ADD2” setting specifies the decimal point setting to a predetermined number of digits for the input numerical value.

  The display unit 12 includes a dot matrix type liquid crystal display unit. The display unit 12 displays numerical values input by operating the keys of the key input unit 11. The display unit 12 displays numerical values for a limited number of lines (for example, one line). Characters and symbols (symbols) indicating the calculation mode being set and various setting states are displayed in a state display area provided along the side of the display unit 12. The symbols displayed in the status display area include, for example, a tax calculation key symbol, a total sum display symbol, a memory symbol, and the like.

  FIG. 2 is a block diagram illustrating a configuration of an electronic circuit of the calculator 10 according to the present embodiment. The electronic circuit of the calculator 10 includes a plurality of units constituting a computer including a CPU 21.

  The CPU 21 controls the operation of each part of the circuit by executing the calculation processing program 22a stored in the memory 22. When an input operation is performed, the CPU 21 detects a key on which an input operation has been performed based on a key input signal from the key input unit 11 and executes various arithmetic processes according to the detected keys. In the calculator 10, the CPU 21 controls the operation of each part of the circuit according to the instructions described in the calculation processing program 22a, and the software and the hardware operate in cooperation to execute the processing by the calculation function described in the following operation description. Implement calculation processing including:

  The calculation processing program 22a may be stored in the memory 22 in advance, may be read from an external recording medium 23 such as a memory card via a recording medium reading unit 24, or may be communicated via a communication unit 25. It may be downloaded from the server 30 on the network N (including the Internet or the like).

  In addition to the calculation processing program 22a stored in the memory 22, the tax rate 1 total memory area 22b, the tax rate 2 total memory area 22c, the tax total memory area 22d, the post-tax total mode data 22e, the independent tax rate 1 memory area 22f, An area for storing each data such as an independent tax rate 2 memory area 22g, an independent memory area 22h, and a tax rate storage area 22k is provided. The tax rate 1 total memory area 22b, the tax rate 2 total memory area 22c, and the tax total memory area 22d are areas used as tax calculation memories used in the tax calculation process.

  The tax rate 1 total memory area 22b is an area for storing data calculated by a tax calculation based on the tax rate 1. In the tax rate 1 total memory area 22b, a tax-inclusive calculation performed in response to an operation of the tax-inclusive 1 calculation key 11b and a tax-excluded 1 calculation key 11d are performed in accordance with the operation of the tax-inclusive 1 calculation key 11b for the numerical value to be subjected to tax calculation. The tax-included amount (the first tax-included amount), the tax amount (the first tax-amount), and the tax-excluded amount (the first tax-excluded amount) calculated by the tax-excluded calculation are stored for at least one numerical value. In the tax-included calculation, the numerical value to be calculated is the tax-excluded amount (first tax-excluded amount), and in the tax-excluded calculation, the numerical value to be calculated is the tax-included amount (first tax-included amount). In addition, the tax rate 1 total memory area 22b includes a first tax-included total amount indicating a total of first tax-included amounts as tax calculation results corresponding to at least one numerical value, and a first tax-excluded total amount corresponding to the first tax-included total amount. , The first total tax amount corresponding to the first total tax amount is stored.

  The tax rate 2 total memory area 22c is an area for storing data calculated by a tax calculation based on the tax rate 2. In the tax rate 2 total memory area 22c, a tax-inclusive calculation performed in response to an operation of the tax-inclusive 2 calculation key 11c and a tax-excluded 2 calculation key 11e are performed in response to the operation of the tax-inclusive 2 calculation key 11c for the numerical value to be subjected to tax calculation. The tax-excluded amount (second tax-included amount) and the tax amount (second tax-amount) calculated by the tax-excluded calculation, and the tax-excluded amount (second tax-excluded amount) are stored for at least one numerical value. In the tax-included calculation, the numerical value to be calculated is the tax-excluded amount (first tax-excluded amount), and in the tax-excluded calculation, the numerical value to be calculated is the tax-included amount (first tax-included amount). In addition, the tax rate 2 total memory area 22c includes a second total tax-included total amount indicating a total second tax-included amount as a tax calculation result corresponding to at least one numerical value, and a second total tax-excluded total amount corresponding to the second tax-included total amount. , A second total tax amount corresponding to the second total tax amount is stored.

  The tax total memory area 22d is an area for storing data indicating a total of a numerical value calculated by the tax calculation based on the tax rate 1 and a numerical value calculated by the tax calculation based on the tax rate 2. In the tax total memory area 22d, the total tax-included total amount including the first total tax-included total amount and the second total tax-included total amount according to the input operation of the total tax calculation key 11f, and the total tax-excluded total amount corresponding to the total tax-included total amount are included. The total tax amount corresponding to the total amount and the total total amount including tax is stored.

  The post-tax total mode data 22e is data indicating whether or not the tax-inclusive total amount has been calculated according to the input operation of the tax calculation total key 11f (post-tax total mode on / off). The post-tax total mode is turned on when the total amount including tax is calculated, and when a key other than the tax-included 1 calculation key 11b and the tax-included 2 calculation key 11c, for example, the [AC] key 11a is operated or a numeric key is operated. This is turned off when a new numerical value is input. When the post-tax total mode is on (the state after calculation of the tax-inclusive total amount), when the operation on the tax-included 1 calculation key 11b or the tax-included 2 calculation key 11c is performed, the (first / second) tax-included total is performed. The amount is displayed. Each time the same key (1 calculation key including tax 11b or 2 calculation key including tax 11c) is operated, the total amount excluding tax corresponding to the (first / second) total amount including tax and the (first / second) total amount including tax are included. The total tax amount corresponding to the amount is switched and sequentially displayed. Further, when the post-tax total mode is off (that is, after the calculation of the tax-inclusive total amount), if the operation on the tax-included 1 calculation key 11b or the tax-included 2 calculation key 11c is performed, the displayed numerical value is set to the tax-excluded amount. The (first / second) tax-included amount of the case is displayed. When the same key (tax-included 1 calculation key 11b or tax-included 2 calculation key 11c) is operated, the (first / second) tax amount is displayed.

  The independent tax rate 1 memory area 22f and the independent tax rate 2 memory area 22g are areas used as independent tax memories used by the tax calculation memory function. The independent tax rate 1 memory area 22f corresponds to the tax rate 1 total memory area 22b, and stores numerical values corresponding to the tax-included total amount, the tax-excluded total amount, and the tax total amount stored in the tax rate 1 total memory area 22b. Is done. Similarly, the independent tax rate 2 memory area 22g corresponds to the tax rate 2 total memory area 22c, and corresponds to each of the tax-included total amount, the tax-excluded total amount, and the tax total amount stored in the tax rate 2 total memory area 22c. Is stored.

  The independent tax rate 1 memory area 22f is updated (addition, subtraction) based on the data stored in the tax rate 1 total memory area 22b in response to an operation on the [M +] key 11m1 and the [M-] key 11m2. The independent tax rate 2 memory area 22g is updated (addition, subtraction) based on the data stored in the tax rate 2 total memory area 22c in response to an operation on the [M +] key 11m1 and the [M-] key 11m2.

  The independent memory area 22h is an area used by a normal memory function. The independent memory area 22h is updated (added or subtracted) by a numerical value obtained by the four arithmetic calculations or a numerical value obtained by the tax calculation in accordance with an operation on the [M +] key 11m1 and the [M-] key 11m2.

  The independent tax rate 1 memory area 22f, the independent tax rate 2 memory area 22g, and the independent memory area 22h hold nonvolatile data even when the [AC] key 11a or [C] key is operated and the power is turned off. Area.

  The tax rate storage area 22k stores numerical values indicating the tax rates 1 and 2 set in the tax calculation key.

  Next, the operation of the calculator 10 in the present embodiment will be described. FIGS. 3, 4, and 5 are flowcharts for explaining the operation of the tax calculation function of the calculator 10 in the present embodiment. FIG. 6 is a flowchart for explaining the operation of the memory function processing of the calculator 10 in the present embodiment. FIG. 7 is a diagram illustrating a specific example of an input operation and a display for explaining the tax calculation function of the calculator 10 according to the present embodiment. 8 and 9 are diagrams illustrating specific examples of numerical values stored in the tax calculation memory according to the present embodiment.

  First, the user operates (presses) the [AC] key 11a to clear the display before starting the calculation. When the [AC] key 11a is operated (Step A1, Yes), the CPU 21 operates each area of the memory 22 used for the tax calculation, that is, the tax rate 1 total memory area 22b, the tax rate 2 total memory area 22c, and the tax total memory. All areas 22d are cleared (step A2). Further, the CPU 21 turns off the post-tax total mode stored in the post-tax total mode data 22e (step A3). FIG. 6A1 shows a display example when the [AC] key 11a is operated. Further, when the [AC] key 11a is operated in a state where the numerical value calculated by the above four arithmetic calculations or tax calculation is displayed, the CPU 21 clears the previously displayed numerical value and sets “0”. indicate.

  When detecting the input operation on the tax included 1 calculation key 11b immediately after the input operation of the [AC] key 11a (steps A8, A9, Yes), the CPU 21 determines the numerical value indicating the tax rate 1 stored in the tax rate storage area 22k. With reference to the display, the tax rate 1 set for the tax included 1 calculation key 11b is displayed on the display unit 12 (step A10). In the present embodiment, “10%” is set as the tax rate 1 in the initial setting. Similarly, when an input operation to the tax-inclusive 2 calculation key 11c is detected immediately after the input operation of the [AC] key 11a (steps A26, A27, Yes), the CPU 21 determines the tax rate 2 stored in the tax rate storage area 22k. Is displayed on the display unit 12 with reference to the numerical value indicating (step A28). In the present embodiment, “8%” is set as the tax rate 2 in the initial setting.

  Next, when a numerical key is operated by the user to input a numerical value to be calculated (Step A4, Yes), the CPU 21 inputs a numerical value (numerical code) corresponding to the input numerical key. Then, the input numerical value is displayed on the display unit 12 (step A5). Further, the CPU 21 turns off the post-tax total mode stored in the post-tax total mode data 22e (step A3).

  Subsequently, when the operation key is operated (Step A6, Yes), the CPU 21 inputs an operation (operation code) corresponding to the operated operation key, and changes the operation (symbol) symbol of the input operation. It is displayed in the status display area of the display unit 12 (step A7). Further, the CPU 21 turns off the post-tax total mode stored in the post-tax total mode data 22e (step A3).

  Further, the CPU 21 performs an operation based on the input operation code and the input numerical code, and causes the display unit 12 to display a result in the middle of the operation. Hereinafter, similarly, by repeatedly inputting the numerical code and the operation code, the CPU 21 sequentially stores the input numerical code and the operation code. When the operation execution key “=” (equal) key is operated by the user, the CPU 21 inputs an operation code corresponding to the input operation execution key (“=” key) that has been input, and inputs the operation code up to that time. The calculation according to the numerical code and the operation code (“=” code) is executed, and the calculation result is displayed on the display unit 12 (steps A4 to A7).

  Thus, in a state where the numerical value is displayed on the display unit 12, the input operation of the tax calculation key (the tax-included 1 calculation key 11b, the tax-included 2 calculation key 11c, the tax-excluded 1 calculation key 11d, and the tax-excluded 2 calculation key 11e) is detected. In this case, the CPU 21 calculates a tax on the numerical value displayed on the display unit 12 based on a tax rate (tax rate 1, tax rate 2) corresponding to the tax calculation key on which the input operation is performed (calculation including tax, calculation without tax). Execute In the above description, the numerical value displayed on the display unit 12 is input (displayed) by calculation, but the numerical value input simply by the input operation of the numerical keys can be set as the target of the tax calculation.

  For example, when the CPU 21 detects the input operation of the tax-inclusive 1 calculation key 11b (step A8, Yes), the post-tax total mode is off (step A11, Yes). With respect to the numerical value, the tax-included amount and the tax amount are calculated based on the tax rate 1 (for example, “10%”), and stored in the tax rate 1 total memory area 22b together with the tax-excluded amount indicated by the displayed numerical value (step A12). Further, the CPU 21 causes the display unit 12 to display the tax-included amount calculated based on the tax rate 1 (step A13).

  Similarly, the input operation of the tax-inclusive 1 calculation key 11b is detected while the numerical value input by the operation of the numerical keys (or the numerical value calculated by the operation) is displayed on the display unit 12 (steps A4 to A7). In the case (step A8, Yes), the CPU 21 calculates the tax based on the tax rate 1 for the numerical value displayed on the display unit 12, and stores the calculation result (tax-excluded amount, tax-included amount, tax amount) in the tax-rate-1 total memory area 22b. And display the tax-included amount on the display unit 12 (steps A8 to A13). The CPU 21 sums (adds) the calculation results of the tax-included calculation corresponding to the tax-included amount, the tax-excluded amount, and the tax amount stored in the tax rate 1 total memory area 22b by the previous tax calculation.

  On the other hand, in a state where the numerical value is displayed on the display unit 12 (steps A4 to A7), if the input operation of the tax-excluded 1 calculation key 11d is detected (FIG. 4, step A110, Yes), the CPU 21 sets the post-tax total mode. Is off (step A111, Yes), the tax-excluded amount and the tax amount are calculated based on the tax rate 1 for the displayed numerical value for tax calculation, and the tax rate together with the tax-included amount indicated by the displayed numerical value is calculated. One is stored in the total memory area 22b (step A112). Further, the CPU 21 causes the display unit 12 to display the tax-excluded amount calculated based on the tax rate 1 (step A113). The CPU 21 sums (adds) the tax-excluded calculation results corresponding to the tax-included amount, the tax-excluded amount, and the tax amount stored in the tax rate 1 total memory area 22b by the previous tax calculation.

  In this manner, the tax calculation executed in response to the operation of the tax included 1 calculation key 11b and the tax excluded 1 calculation key 11d is performed using the same tax rate 1, so that any tax calculation (tax included calculation, tax excluded calculation) is performed. The result is also recorded in the tax rate 1 total memory area 22b corresponding to the tax rate 1. Therefore, regardless of the order in which the tax included calculation according to the operation of the tax included 1 calculation key 11b and the tax excluded calculation according to the operation of the tax excluded 1 calculation key 11d are performed in any order, the tax rate 1 total memory area 22b is stored in the tax rate 1 total memory area 22b. The same tax calculation result is stored. That is, even if the tax-included calculation and the tax-excluded calculation are executed in a mixed manner, the tax-excluded amount, the tax-excluded amount, and the tax amount stored in the tax-excluded calculation and the tax-included amount stored in the tax-exclusive calculation are stored in the tax rate 1 total memory area 22b. , The first total value including the total value of the tax amount and the tax amount is stored.

  When the CPU 21 detects the input operation of the tax-inclusive 2 calculation key 11c (step A26, Yes), the post-tax total mode is in the off state (step A29, Yes). With respect to the numerical value, the tax-included amount and the tax amount are calculated based on the tax rate 2 (for example, “8%”) and stored in the tax rate 2 total memory area 22c together with the tax-excluded amount indicated by the displayed numerical value (step A30). Further, the CPU 21 causes the display unit 12 to display the tax-included amount calculated based on the tax rate 2 (step A31).

  Similarly, while the numerical value input by operating the numerical keys (or the numerical value calculated by calculation) is displayed on the display unit 12 (steps A4 to A7), the input operation of the tax-inclusive 2 calculation key 11c is detected. In this case (step A26, Yes), the CPU 21 calculates the tax based on the tax rate 2 for the numerical value displayed on the display unit 12, and stores the calculation result (excluding tax, tax included, tax) in the tax rate 2 total memory area 22c. And display the tax-included amount on the display unit 12 (steps A26 to A30). The CPU 21 sums (adds) the calculation results of the tax-included calculation corresponding to the tax-included amount, the tax-excluded amount, and the tax amount stored in the tax rate 2 total memory area 22c by the previous tax calculation.

  On the other hand, in a state where the numerical value is displayed on the display unit 12 (steps A4 to A7), when the input operation of the tax-excluded 2 calculation key 11e is detected (FIG. 5, step A126, Yes), the CPU 21 sets the post-tax total mode. Is off (step A129, Yes), the tax-excluded amount and the tax amount are calculated based on the tax rate 2 for the displayed numerical value for tax calculation, and the tax rate together with the tax-included amount indicated by the displayed numerical value is calculated. 2 is stored in the total memory area 22c (step A130). Further, the CPU 21 causes the display unit 12 to display the tax-excluded amount calculated based on the tax rate 2 (step A131). The CPU 21 sums (adds) the calculation results of the tax-excluding calculation corresponding to the tax-included amount, the tax-excluded amount, and the tax amount stored in the tax rate 2 total memory area 22c by the previous tax calculation.

  In this way, the tax calculation executed in response to the operation of the tax included 2 calculation key 11c and the tax excluded 2 calculation key 11e is performed using the same tax rate 2, so that any tax calculation (tax included calculation, tax excluded calculation) is performed. The result is also recorded in the tax rate 2 total memory area 22c corresponding to the tax rate 2. Therefore, regardless of the order in which the tax-inclusive calculation according to the operation of the tax-inclusive 2 calculation key 11c and the tax-excluded calculation in accordance with the operation of the tax-exempt 2 calculation key 11e are performed in any order, the tax rate 2 total memory area 22c is stored in the tax rate 2 total memory area 22c. The same tax calculation result is stored. That is, even if the tax-included calculation and the tax-excluded calculation are executed in a mixed manner, the tax-included 2 calculation key 11c includes the tax-included amount, tax-excluded amount, and tax amount stored by the tax-included calculation, and the tax-included amount stored by the tax-excluded calculation. A second total value including the total value of the tax exemption amount and the tax amount is stored.

  As described above, the tax calculation results of the tax calculation using the tax rate 1 and the tax calculation using the tax rate 2 are stored in the tax rate 1 total memory area 22b and the tax rate 2 total memory area 22c, respectively. Accordingly, the tax calculation by operating the tax-inclusive 1 calculation key 11b or the tax-excluded 1 calculation key 11d and the tax calculation by operating the tax-inclusive 2 calculation key 11c or the tax-excluded 2 calculation key 11e can be performed at a plurality of tax rates without executing them individually. The tax calculation result based on 1, 2 is stored, and the tax calculation result can be confirmed as described later. Therefore, the calculator 10 according to the present embodiment can easily execute tax calculations based on a plurality of tax rates.

  Hereinafter, a description will be given of a specific example of inputting a numerical value and calculating a tax, in which a tax-inclusive calculation and a tax-exclusive calculation based on a plurality of tax rates 1 and 2 are executed in a mixed manner. 7 (B1) to 7 (B7), a plurality of numerical values (indicating the tax-excluded amount or the tax-included amount) are input, and the execution of the tax calculation for each is performed by the tax-included 1 calculation key 11b, the tax-included 2 calculation key 11c, and the tax-excluded. It indicates that it is designated by the 1 calculation key 11d or the tax-excluded 2 calculation key 11e. FIG. 8 shows specific examples of numerical values stored in the tax calculation memories (tax rate 1 total memory area 22b, tax rate 2 total memory area 22c, and tax total memory area 22d) by the tax calculations shown in FIGS. 7 (B1) to 7 (B7). It is a figure showing an example. In the initial state of the tax calculation memory, all numerical values “0” are stored as shown in FIG.

  For example, as shown in FIG. 7 (B1), when a numerical value “1000” is input and then an instruction to execute the tax-inclusive calculation at the tax rate 1 is input by operating the tax-inclusive 1 calculation key 11b, the CPU 21 sets the numerical value “1000”. Is displayed based on the tax rate 1 with respect to "1". In addition, the CPU 21 displays a tax calculation key symbol "tax included 1" indicating that the tax calculated based on the tax rate 1 is displayed according to the operation of the tax included 1 calculation key 11b. As shown in FIG. 8B, the CPU 21 stores the tax-included amount “1100”, the tax-excluded amount “1000”, and the tax amount “100” in the tax rate 1 total memory area 22b as the calculation result of the tax-included calculation.

  Although FIG. 8B shows that a numerical value is stored in the tax total memory area 22d, the tax total memory area 22d has a post-tax calculation mode by operating a tax calculation total key 11f described later. Is turned on, the total value of the numerical values stored in the tax rate 1 total memory area 22b and the tax rate 2 total memory area 22c is stored. The numerical values stored in the tax total memory area 22d shown in FIGS. 7B to 7H indicate the numerical values stored when the tax calculation total key 11f is operated in each state.

  Similarly, as shown in FIG. 7 (B2), when a numerical value “3240” is input and then an instruction to execute a tax-inclusive calculation based on the tax rate 2 is input by operating the tax-excluded 2 calculation key 11e, the CPU 21 The tax-excluded amount “3000” calculated by the tax-exclusion calculation based on the tax rate 2 for “3240” is displayed. In addition, the CPU 21 displays a tax calculation key symbol “tax-excluded tax 2” indicating that the tax-excluded amount calculated based on the tax rate 2 is displayed according to the operation of the tax-excluded 2 calculation key 11e. As shown in FIG. 8C, the CPU 21 stores a tax-excluded amount of “3240”, a tax-excluded amount of “3000”, and a tax amount of “240” in the tax rate 2 total memory area 22c as calculation results of the tax-excluded calculation.

  Similarly, as shown in FIG. 7 (B3), when a numerical value “220” is input and then an operation instruction of a tax exemption calculation based on the tax rate 1 is input by operating the tax exemption 1 calculation key 11d, the CPU 21 The tax exemption amount “200” calculated by the tax exemption calculation based on the tax rate 1 for the numerical value “220” is displayed. In addition, the CPU 21 displays a tax calculation key symbol “tax-excluded tax 1” indicating that the tax-excluded amount calculated based on the tax rate 1 is displayed according to the operation of the tax-excluded 1 calculation key 11d. As shown in FIG. 8D, the CPU 21 stores the tax-excluded amount “240”, the tax-excluded amount “200”, and the tax amount “40” in the tax rate 1 total memory area 22b as the tax-excluded calculation result. Are added to the tax-included amount “3240”, the tax-excluded amount “3000”, and the tax amount “240”, respectively, which are stored by (1). That is, the CPU 21 stores the total amount including tax, the total amount excluding tax, and the total amount of tax in the tax calculation based on the tax rate 1 in the tax rate 1 total memory area 22b.

  Similarly, as shown in FIG. 7 (B4), when a numerical value “2000” is input and then an instruction to execute the tax-inclusive calculation based on the tax rate 2 is input by operating the tax-inclusive 2 calculation key 11c, the CPU 21 sets the numerical value “ The tax-included amount “2160” calculated by the tax-inclusive calculation based on the tax rate 2 for “2000” is displayed. In addition, the CPU 21 displays a tax calculation key symbol “tax included 2” indicating that the tax-included amount calculated based on the tax rate 2 is displayed according to the operation of the tax included 2 calculation key 11c. As shown in FIG. 8E, the CPU 21 calculates the tax-included amount “2160”, the tax-excluded amount “2000”, and the tax amount “160” in the tax rate 2 total memory area 22c as the calculation result of the tax-included calculation by the previous tax calculation. The tax-included amount “3240”, the tax-excluded amount “3000”, and the tax amount “240” are added. That is, the CPU 21 stores the total tax-included amount, the total tax-excluded amount, and the total tax amount of the tax calculation based on the tax rate 2 in the tax rate 2 total memory area 22c.

  Similarly, as shown in FIGS. 7 (B5) to 7 (B7), as shown in FIG. It is assumed that the tax-excluded calculation based on the tax rate 1 by operating the 1 calculation key 11d and the tax-included calculation execution instruction based on the tax rate 2 by operating the calculation key 11c for the numerical value "400" are sequentially input.

  As described above, the CPU 21 executes the tax-inclusive calculation or the tax-exclusive calculation based on the tax rate corresponding to each tax calculation key. As a result, the CPU 21 displays the numerical values (“5000”, “1500”, and “432”) as the tax calculation results, as shown in FIGS. Display the key symbol ("tax-included tax 1", "tax-excluded tax 1", "tax-included tax 2").

  Further, the CPU 21 stores (adds) each tax calculation result to the tax rate 1 total memory area 22b or the tax rate 2 total memory area 22c according to the tax rate (tax rate 1 or tax rate 2) used for the tax calculation.

  FIGS. 8 (F) to 8 (H) show the numerical values (total tax amount, tax included) stored in the tax rate 1 total memory area 22b and the tax rate 2 total memory area 22c by the tax calculation shown in FIGS. 7 (B5) to 7 (B7). Total amount without tax, total tax amount). In FIG. 8F, as a result of the tax-included calculation based on the tax rate 1 for the numerical value “5000”, the tax-included amount “5500”, the tax-excluded amount “5000”, and the tax amount “620” are added to the tax rate 1 total memory area 22b. In FIG. 8 (G), the tax-excluded amount “1650”, the tax-excluded amount “1500”, and the tax amount “150” are added to the tax-rate-1 total memory area 22b as a result of the tax-excluded calculation based on the tax rate 1 for the numerical value “1650”. . In FIG. 8H, the tax-included amount “432”, the tax-excluded amount “400”, and the tax amount “32” are added to the tax rate 2 total memory area 22c as a result of the tax-included calculation based on the tax rate 2 for the numerical value “400”.

  In this way, the calculator 10 in the present embodiment determines the tax rate used for the tax calculation for the input numerical value and whether to perform the tax calculation including the tax-included calculation or the tax-excluded calculation as the tax calculation by the tax-included 1 calculation key 11b and the tax-included 2 calculation key 11c. , Can be arbitrarily designated by operating the tax-excluded 1 calculation key 11d or the tax-excluded 2 calculation key 11e. Therefore, for example, when calculating the total amount of a plurality of products having different applied tax rates, for a plurality of products having different applied tax rates, by individually selecting and operating a tax calculation key corresponding to the tax rate, the applied tax rate can be reduced. Since the corresponding tax calculation can be executed, the work for the tax calculation can be facilitated. Further, even when a plurality of products whose prices are set according to the tax-included amount or the tax-excluded amount are mixed, it is only necessary to select and operate the tax calculation key for the tax-included calculation or the tax-excluded calculation. Therefore, the tax calculation can be executed by individually specifying either the tax-inclusive calculation or the tax-exclusive calculation for a plurality of commodities, so that the work for the tax calculation can be facilitated.

  In a state where the tax-included amount or the tax-excluded amount as a result of the tax calculation is displayed, if the key operated to instruct the execution of the tax calculation is continuously operated, the CPU 21 determines the numerical value calculated by the tax calculation. The display of (tax included or tax excluded) is switched to tax display and displayed.

  For example, when the tax-included amount calculated by the tax-inclusive calculation based on the tax rate 1 is displayed in response to the operation of the tax-included 1 calculation key 11b (step A13), the tax-included 1 calculation key 11b is subsequently operated (step A14). , Yes), the CPU 21 reads out and displays the tax amount calculated based on the tax rate 1 from the tax rate 1 total memory area 22b (step A15). Further, when the tax-included 1 calculation key 11b is subsequently operated (step A16, Yes), the CPU 21 displays the tax-included amount calculated based on the tax rate 1 (step A13).

  When the tax-excluded amount calculated by the tax-excluded calculation based on the tax rate 1 is displayed in response to the operation of the tax-excluded 1 calculation key 11d (step A113), when the tax-excluded 1 calculation key 11d is subsequently operated (Step A114, Yes), the CPU 21 reads out and displays the tax amount calculated based on the tax rate 1 from the tax rate 1 total memory area 22b (step A115). Further, when the tax exemption 1 calculation key 11d is operated (step A116, Yes), the CPU 21 displays the tax exemption amount calculated based on the tax rate 1 (step A113).

  When the tax-included amount calculated by the tax-inclusive calculation based on the tax rate 2 is displayed in response to the operation of the tax-included 2 calculation key 11c (step A31), the tax-included 2 calculation key 11c is subsequently operated (step A32). , Yes), the CPU 21 reads out and displays the tax amount calculated based on the tax rate 2 from the tax rate 2 total memory area 22c (step A33). Further, when the tax-included 2 calculation key 11c is subsequently operated (step A34, Yes), the CPU 21 displays the tax-included amount calculated based on the tax rate 2 (step A31).

  Similarly, when the tax exclusion amount calculated by the tax exclusion calculation based on the tax rate 2 is displayed in response to the operation of the tax exclusion 2 calculation key 11e (step A131), the tax exclusion 2 calculation key 11e is subsequently operated. If the tax rate is 2 (Yes at Step A132), the CPU 21 reads out the tax amount calculated based on the tax rate 2 from the tax rate 2 total memory area 22c and displays it (Step A133). Further, when the tax-excluded 2 calculation key 11e is operated (step A134, Yes), the CPU 21 displays the tax-excluded amount calculated based on the tax rate 2 (step A132).

  That is, the calculator 10 displays the tax-included amount or the tax-excluded amount calculated by the tax calculation according to the operation of the tax calculation key, and then displays the tax-included amount for each operation on the tax calculation key operated to instruct the execution of the tax calculation. Alternatively, the display of the tax-excluded amount and the display of the tax amount can be alternately displayed. Therefore, the tax amount or the tax-excluded amount and the tax amount can be easily confirmed.

  Next, a process for displaying a total sum of numerical values stored in the tax rate 1 total memory area 22b and the tax rate 2 total memory area 22c will be described.

  If the tax calculation total key 11f is operated in a state where the tax-included amount, the tax-excluded amount, or the tax amount is displayed (FIG. 5, step A44, Yes), the CPU 21 sets the post-tax total mode indicated by the post-tax total mode data 22e. Is turned on (step A55). Further, the CPU 21 calculates the total of the tax-included amount calculated based on the tax rate 1 stored in the tax rate 1 total memory area 22b (the first tax-included total amount) and the tax rate 2 stored in the tax rate 2 total memory area 22c. The total tax-included total amount (the second total tax-included amount) calculated based on the tax-included total is calculated, stored in the tax total memory area 22d, and displayed on the display unit 12 (step A45). Further, the CPU 21 causes the total display symbol “total” indicating that the post-tax total mode is in the on state to be displayed in the status display area of the display unit 12.

  The calculator 10 sequentially switches the display of the tax-inclusive total amount to the tax-excluded total amount and the tax total total amount by continuously operating the tax calculation total key 11f while the tax-inclusive total amount is displayed. Can be displayed.

  That is, when the tax total sum is displayed (step A45), if the tax calculation total key 11f is operated (step A46, Yes), the CPU 21 sets the tax rate 1 total memory area 22b and the tax rate 2 total memory area 22c. The total tax-excluded total amount corresponding to the tax-included total total amount is calculated based on the data stored in the total tax amount and stored in the tax total memory area 22d. Further, the CPU 21 reads out and displays the total tax-excluded total amount from the tax total memory area 22d (step A47).

  Further, when the total amount before tax is displayed (step A47), when the tax calculation total key 11f is operated (step A48, Yes), the CPU 21 sets the tax rate 1 total memory area 22b and the tax rate 2 total memory area. Based on the data stored in 22c, a total tax amount corresponding to the total tax amount is calculated and stored in the total tax memory area 22d. Further, the CPU 21 reads out and displays the total tax amount from the total tax memory area 22d (step A49). Further, when the tax calculation total key 11f is operated (step A50, Yes), the CPU 21 displays the total tax-included total amount in the same manner as described above (step A45).

  FIG. 8H shows the results of the tax calculations shown in FIGS. 8B to 8H stored in the tax total memory area 22d according to the operation of the tax total key 11f. , Total tax-excluded total, total tax-exclusive). As shown in FIG. 8 (H), the total value of the numerical values stored in the tax rate 1 total memory area 22b and the tax rate 2 total memory area 22c is stored in the tax total memory area 22d as the tax-included amount, the tax-excluded amount, and the tax amount, respectively. Is stored.

  Furthermore, when the tax calculation total key 11f is operated, the CPU 21 causes the display unit 12 to display the total tax included. That is, the calculator 10 sets the post-tax total mode to the ON state in response to the operation of the tax calculation total key 11f, and then, for each operation on the tax calculation total key 11f, corresponds to the total total amount including tax and the total total amount including tax. The display of the total tax amount and the total tax amount corresponding to the total tax amount can be alternately switched. Therefore, it is possible to easily confirm the total amount including tax, the total amount excluding tax, and the total amount including tax.

  FIG. 7C shows a display example (tax calculation total display) when the tax calculation total key 11f is operated. After tax calculation is performed on a plurality of numerical values shown in FIGS. 7 (B1) to 7 (B7), when the tax calculation total key 11f is operated, the CPU 21 sets the tax rate 1 and the tax rate as shown in FIG. 7 (C1). The total amount including tax “14302”, which indicates the total amount of the tax amount to which each of 2 is applied, is displayed. In the display examples shown in FIGS. 7C, 7D, and 7E, the memory symbol “tax M” shown in the status display area of the display unit 12 is changed to an independent tax memory (independent tax rate) by a tax calculation memory function process described later. This indicates that the numerical value has been stored (updated) in the 1 memory area 22f and the independent tax rate 2 memory area 22g), and is not displayed at the time of display according to the operation of the tax calculation total key 11f.

  Here, when the tax calculation total key 11f is operated, the CPU 21 displays the total amount before tax “13100” as shown in FIG. 7 (C2). Further, when the tax calculation total key 11f is operated, the CPU 21 displays the total tax amount "1202" as shown in FIG. 7 (C3). Further, when the tax calculation total key 11f is operated, the CPU 21 returns to the display shown in FIG. 7 (C1), and displays the total total amount including tax “14302”.

  Next, a case where the after-tax total calculation key 11b or the including tax 2 calculation key 11c is operated after the after-tax total mode is turned on (after the total total amount including tax is calculated) will be described.

  As shown in FIGS. 7 (C1) to 7 (C3), when the tax-included 1 calculation key 11b is operated in a state where the tax-included total amount, the tax-excluded total amount, or the tax total amount is displayed (FIG. 3). Since the post-tax total mode is on (step A11, No), the CPU 21 sets the first tax-included total amount indicating the total of the first tax-included amount corresponding to at least one numerical value to the tax rate 1 (step A8, Yes). It is read from the total memory area 22b and displayed on the display unit 12 (step A17). Further, in a state where the first tax-included total amount is displayed (step A17), when the tax-included 1 calculation key 11b is operated (step A18, Yes), the CPU 21 reads the first tax-included total amount from the tax rate 1 total memory area 22b. The first tax-excluded total amount corresponding to the amount is read and displayed (step A19). Further, when the tax-included 1 calculation key 11b is operated in the state where the first tax-excluded amount is displayed (step A20, Yes), the CPU 21 determines the first tax-included total amount corresponding to the first tax-included total amount from the tax rate 1 total memory area 22b. The total tax amount is read and displayed (step A21). Further, when the tax-included 1 calculation key 11b is operated (step A22, Yes), the CPU 21 reads out and displays the first tax-included total amount from the tax rate 1 total memory area 22b (step A17).

  That is, after the total tax-included total amount is calculated, the calculator 10 calculates the first total tax-included amount, the first total tax-excluded total amount, and the first The display can be switched to any one of the total tax amount. Therefore, it is possible to easily confirm the first total tax, the first total tax, and the first total tax.

  FIG. 7 (D) shows a display example (total display of tax rate 1) when the tax-included 1 calculation key 11b is operated. When the tax-included 1 calculation key 11b is operated in a state where the display shown in FIGS. 7 (C1) to 7 (C3) is displayed, the CPU 21 calculates the tax based on the tax rate 1 as shown in FIG. 7 (D1). The first tax-included total amount “8470” is displayed. Here, when the tax-included 1 calculation key 11b is operated, the CPU 21 displays the first total tax-excluded amount “7700” as shown in FIG. 7 (D2). Further, when the tax-included 1 calculation key 11b is operated, the CPU 21 causes the first total tax amount “770” to be displayed as shown in FIG. 7 (D3). Further, when the tax-included 1 calculation key 11b is operated, the CPU 21 returns to the display shown in FIG. 7 (D1) and displays the first tax-included total amount “8470”.

  When the tax-inclusive 2 calculation key 11c is operated in the display states shown in FIGS. 7 (D1) to 7 (D3) (step A25, Yes), the CPU 21 proceeds to FIGS. 7 (E1) to 7 (E3) described below. ) Is switched to the display of the second total tax-included amount (step A35). When the tax calculation total key 11f is operated in the display states shown in FIGS. 7 (D1) to 7 (D3) (step A24, Yes), the CPU 21 shifts to the display state of the above-mentioned total total amount including tax. (Step A45).

  On the other hand, as shown in FIGS. 7 (C1) to 7 (C3), when the tax-inclusive 2 calculation key 11c is operated in a state where the tax-included total amount, the tax-excluded total amount, or the tax total amount is displayed ( (Step A26, Yes), since the post-tax total mode is on (step A29, No), the CPU 21 calculates the second tax-included total amount indicating the total of the second tax-included amount corresponding to at least one numerical value by the tax rate 2 total. The data is read from the memory area 22c and displayed on the display unit 12 (step A35). Further, in a state where the second tax-included total amount is displayed (step A35), when the tax-included 2 calculation key 11c is operated (step A36, Yes), the CPU 21 reads the second tax-included total amount from the tax rate 2 total memory area 22c. The second tax-excluded total amount corresponding to the amount is read out and displayed (step A37). Further, when the tax-exclusive 2 calculation key 11c is operated in a state where the second tax-excluded amount is displayed (step A38, Yes), the CPU 21 reads the second tax-included total amount corresponding to the second tax-included total amount from the tax rate 2 total memory area 22c. The total tax amount is read and displayed (step A39). Further, when the tax incl. 2 calculation key 11c is operated (Step A40, Yes), the CPU 21 reads out and displays the second tax inclusive total amount from the tax rate 2 total memory area 22c (Step A35).

  That is, after the total tax-included total amount is calculated, the calculator 10 calculates the second total tax-included total amount, the second total tax-excluded total amount calculated based on the tax rate 2, and the second The display can be switched to any of the two tax sums. Therefore, the second total tax, the second total tax-free total, and the second total tax can be easily confirmed.

  FIG. 7E shows a display example (total display of tax rate 2) when the tax-inclusive 2 calculation key 11c is operated. When the tax included 2 calculation key 11c is operated in a state where the display shown in FIGS. 7 (C1) to 7 (C3) is displayed, the CPU 21 calculates the tax based on the tax rate 2 as shown in FIG. 7 (E1). The second total tax included "5832" is displayed. Here, when the tax-inclusive 2 calculation key 11c is operated, the CPU 21 displays the second total tax-excluded amount “5400” as shown in FIG. 7 (E2). Further, when the tax included 2 calculation key 11c is operated, the CPU 21 displays the second total tax amount “432” as shown in FIG. 7 (E3). Further, when the tax-included 2 calculation key 11c is operated, the CPU 21 returns to the display shown in FIG. 7 (E1) and displays the second total tax-included amount “5832”.

  When the tax-included 1 calculation key 11b is operated in the display states shown in FIGS. 7 (E1) to (E3) (step A43, Yes), the CPU 21 proceeds to the first step shown in FIGS. 7 (D1) to (D3). The display is switched to the display of the total amount including one tax (step A17). When the tax calculation total key 11f is operated in the display states shown in FIGS. 7 (E1) to (E3) (step A42, Yes), the CPU 21 shifts to the display state of the above-mentioned total total amount including tax. (Step A45).

  That is, while the post-tax total mode is in the ON state, the calculator 10 displays a total display corresponding to each of the tax rates 1 and 2 by a simple operation of the tax-included 1 calculation key 11b and the tax-included 2 calculation key 11c. 7 (D1) to (D3) and FIGS. 7 (E1) to (E3)) can be switched and displayed. The calculator 10 can be switched to the total display (FIG. 7 (C1) to (C3)) and displayed by operating the tax calculation total key 11f.

  Thus, in the calculator 10 according to the present embodiment, a simple operation using the tax-included 1 calculation key 11b, the tax-included 2 calculation key 11c, the tax-excluded 1 calculation key 11d, and the tax-excluded 2 calculation key 11e corresponding to each of a plurality of tax rates. The user can calculate the tax based on a plurality of tax rates and easily check the contents of the tax calculation.

  In the above description, the first tax-included total amount, the first tax-excluded total amount, and the first tax-excluded total amount stored in the tax rate 1 total memory area 22b are displayed by operating the tax included 1 calculation key 11b. Alternatively, it may be displayed by operating the tax-excluded 1 calculation key 11d instead of the tax-included 1 calculation key 11b, or may be displayed in the same manner when either the tax-included 1 calculation key 11b or the tax-excluded 1 calculation key 11d is operated. good.

  Similarly, by operating the tax included 2 calculation key 11c, the second tax total, the second tax exclusive, and the second tax total stored in the tax rate 2 total memory area 22c are displayed. It may be displayed by operating the tax-excluded 2 calculation key 11e instead of the calculation key 11c, or may be displayed in the same manner when either the tax-included 2 calculation key 11c or the tax-excluded 2 calculation key 11e is operated.

  Next, a tax rate setting process for setting a tax rate for the tax included 1 calculation key 11b and the tax included 2 calculation key 11c will be described.

  For example, after the operation of the [AC] key 11a (step A1), for example, when the operation of long-pressing the [%] key 11g (for example, the operation of pressing and holding the [%] key 11g for a preset time or more) is performed (steps A51 and A52, Yes), the CPU 21 starts a tax rate setting process (step A53). When the [%] key 11g is a normal operation (operation shorter than a preset time) (No at Step A52), the CPU 21 performs% calculation on the displayed numerical value (Step A54).

  When the tax rate setting process is started, the CPU 21 displays a tax rate setting screen. Here, when the tax-included 1 calculation key 11b is operated, the CPU 21 causes the display unit 12 to display the tax rate 1 ("10") and the symbol of "tax 1" set in the tax-included 1 calculation key 11b. Next, when a numerical value indicating the newly set tax rate 1 (for example, “8”) is input and the [%] key 11g is operated, the CPU 21 displays the input numerical value (“8”). At the same time, it is stored in the tax rate storage area 22k as the tax rate 1 applied to the tax included 1 calculation key 11b.

  The tax rate 2 corresponding to the tax included 2 calculation key 11c can be arbitrarily set by a user operation in the same manner as described above.

  In this way, the calculator 10 in the present embodiment can set an arbitrary tax rate for the tax-included 1 calculation key 11b and the tax-included 2 calculation key 11c. When the tax-included 1 calculation key 11b or the tax-included 2 calculation key 11c is operated in the processing shown in FIGS. 3 and 4 described above, the CPU 21 performs the tax calculation using the newly set (registered) tax rates 1 and 2. Run.

  Next, a memory function of the calculator 10 according to the present embodiment will be described. FIG. 6 is a flowchart for explaining the operation of the memory function process in the present embodiment. First, the normal memory function will be described.

  When the memory key is operated (Step A55, Yes), the CPU 21 executes a memory function process (Step A56). The CPU 21 determines whether or not the post-tax calculation mode is on by referring to the post-tax total mode data 22e. When the post-tax calculation mode is not in the ON state (step B1, No), the CPU 21 executes a process according to the operated memory key by the normal memory function.

  That is, when the [M +] key 11m1 is operated (Step B9, Yes), the CPU 21 adds the numerical value displayed on the display unit 12 to the numerical value stored in the independent memory area 22h as a processing target (Step B10). ). Note that the initial value of the numerical value stored in the independent memory area 22h is “0”. The CPU 21 causes a memory symbol (for example, “M”) indicating that the numerical value is stored in the independent memory area 22h to be displayed in the status display area of the display unit 12 (not shown). When the [M-] key 11m2 is operated (Step B11, Yes), the CPU 21 sets the numerical value displayed on the display unit 12 as a processing target and stores the numerical value to be processed in the independent memory area 22h. The calculated numerical value is subtracted (step B12).

  When the [MR] key 11m3 is operated (Step B13, Yes), the CPU 21 reads out the numerical value stored in the independent memory area 22h and displays it on the display unit 12 (Step B14).

  For example, if the [M +] key 11m1 is operated before the tax calculation mode is turned on and the numerical value "1100" as the tax-included calculation result is displayed, as shown in FIG. 7 (B1). The CPU 21 stores the numerical value “1100” in the independent memory area 22h. Similarly, as shown in FIG. 7 (B7), when the [M−] key 11m2 is operated while the numerical value “432” as the result of the tax calculation is displayed, the CPU 21 starts the numerical value “1100”. The numerical value “432” is subtracted, and the numerical value “668” is stored in the independent memory area 22h. Here, when the [MR] key 11m3 is operated, the CPU 21 causes the display unit 12 to display the numerical value “668” stored in the independent memory area 22h.

  When the [MC] key 11m4 is operated (MC key in step B13), the CPU 21 clears (initializes) the numerical value stored in the independent memory area 22h (step B15).

  Next, the tax calculation memory function will be described.

  As described above, when the memory key is operated (step A55, Yes), the CPU 21 executes the memory function process (step A56), and determines whether the post-tax calculation mode is in the ON state or the post-tax total mode data 22e. Refer to and determine. For example, in the display states shown in FIGS. 7C, 7D, and 7E, the post-tax calculation mode is on. Accordingly, in the display states shown in FIGS. 7C, 7D, and 7E, as shown in FIG. 7F, when the memory key is operated, the tax calculation memory function is executed.

  When the CPU 21 determines that the post-tax calculation mode is in the ON state with reference to the post-tax total mode data 22e (step B1, Yes), the CPU 21 performs processing according to the operated memory key by the tax calculation memory function. Execute

  That is, when the [M +] key 11m1 is operated (Step B2, Yes), the CPU 21 stores the numerical values (the total amount including tax, the total amount without tax, and the total amount of tax) stored in the current tax rate 1 total memory area 22b. Is added to the numerical values (the numerical values corresponding to the total amount including tax, the total amount excluding tax, and the total amount of tax) stored in the independent tax rate 1 memory area 22f. Further, the CPU 21 stores the numerical values (total tax included, tax-excluded total, tax total) stored in the tax rate 2 total memory area 22c into the numerical values (tax-included total, tax excluded) stored in the independent tax rate 2 memory area 22g. (The numerical value corresponding to each of the total amount and the tax total amount) (step B3). The independent tax rate 1 memory area 22f and the independent tax rate 2 memory area 22g store numerical values corresponding to the total tax amount, the total tax amount, and the total tax amount, respectively, and the initial value of each numerical value is set to “0”. . Further, the CPU 21 displays a memory symbol “tax M” indicating that the numerical value stored in the independent tax memory has been updated in the status display area of the display unit 12. FIGS. 7C, 7D, and 7E show display examples of the memory symbol “tax M”.

  When the [M-] key 11m2 is operated (step B4, Yes), the CPU 21 stores the numerical values (the total amount including tax, the total amount without tax, and the total amount of tax) stored in the current tax rate 1 total memory area 22b. Accordingly, the numerical value (the numerical value corresponding to each of the total amount including tax, the total amount excluding tax, and the total amount of tax) stored in the independent tax rate 1 memory area 22f is subtracted. Further, the CPU 21 uses the numerical values (total tax included, total tax-excluded, total tax) stored in the tax rate 2 total memory area 22c to calculate the numerical values (total tax-included total, tax excluded) stored in the independent tax rate 2 memory area 22g. The numerical value corresponding to each of the total amount and the total tax amount) is subtracted (step B5).

  Next, when the [MR] key 11m3 is operated (Step B6, Yes), the CPU 21 displays the numerical values (the total amount including tax, the total amount excluding tax, and the total amount of tax) stored in the current independent tax rate 1 memory area 22f. The corresponding numerical values are read out and stored in the tax rate 1 total memory area 22b as numerical values indicating each of the total amount including tax, the total amount excluding tax, and the total amount of tax. Further, the CPU 21 reads out the numerical values (numerical values corresponding to the total amount including tax, the total amount excluding tax, and the total amount of tax) stored in the current independent tax rate 2 memory area 22g, and stores the total amount including tax in the tax rate 2 total memory area 22c. The amount, the total tax-excluded amount, and the total tax amount are stored as numerical values (step B7).

  In addition, the CPU 21 changes the values stored in the tax rate 1 total memory area 22b and the tax rate 2 total memory area 22c in accordance with the change of the values stored in the tax rate 1 total memory area 22c (the total amount including tax, the total The total amount and the total tax amount) are changed (step B8). Then, based on the value stored in the tax total memory area 22d, the CPU 21 displays the total tax calculation on the display unit 12 in the same manner as in FIG. 7C described above (step A45).

  By operating the tax included 1 calculation key 11b in the tax calculation total display mode, the tax rate is calculated in the same manner as in FIG. 7D based on the numerical value stored in the tax rate 1 total memory area 22b as described above. A total of 1 can be displayed. That is, the numerical value read from the independent tax rate 1 memory area 22f can be displayed. Similarly, by operating the tax included 2 calculation key 11c in the state of displaying the tax calculation total sum, as described above, based on the numerical value stored in the tax rate 2 total memory area 22c, as shown in FIG. Similarly, the total of the tax rate 2 can be displayed. That is, the numerical value read from the independent tax rate 2 memory area 22g can be displayed.

  When the [MC] key 11m4 is operated (steps B2, B4, B6, No), the CPU 21 clears (initializes) the numerical values stored in the independent tax rate 1 memory area 22f and the independent tax rate 2 memory area 22g. At the same time, the memory symbol "tax M" is erased from the display unit 12 (step B16).

  In this manner, in the calculator 10 of the present embodiment, apart from the independent memory area 22h, the independent tax rate 1 memory area 22f and the independent tax rate 2 memory corresponding to the tax rate 1 total memory area 22b and the tax rate 2 total memory area 22c, respectively. An area 22g can be provided to execute the tax calculation memory function processing. In the tax calculation memory function, the independent tax rate 1 memory area 22f is calculated based on a plurality of numerical values (total tax included, total tax excluded, total tax) stored in each of the tax rate 1 total memory area 22b and the tax rate 2 total memory area 22c. And the numerical value stored in the independent tax rate 2 memory area 22g can be updated (added or subtracted). Therefore, the numerical values such as the tax-included amount, the tax-excluded amount, and the tax amount calculated by the tax calculation can be easily and more effectively used by the tax calculation memory function.

  In the tax calculation memory function described above, the entire tax calculation memory (tax rate 1 total memory area 22b, tax rate 2 total memory area 22c) and the entire independent tax memory (independent tax rate 1 Although the memory area 22f and the independent tax rate 2 memory area 22g) are to be processed, a part of the tax calculation memory and a part of the independent tax memory may be processed according to the situation when the memory key is operated.

  For example, when the memory key is operated, the total sum is being displayed (FIG. 7 (C)) or the tax rate 1 displaying the numerical value stored in the tax rate 1 total memory area 22b is being displayed (FIG. 7 (D )) Or during the display of the total of the tax rate 2 displaying the numerical value stored in the tax rate 2 total memory area 22c (FIG. 7E).

  For example, when the total sum is being displayed (FIG. 7C), the CPU 21 determines the entire tax calculation memory (tax rate 1 total memory area 22b and tax rate 2 total memory area 22c) and the entire independent tax memory. (Independent tax rate 1 memory area 22f, independent tax rate 2 memory area 22g) are to be processed. When the tax rate 1 total is being displayed (FIG. 7D), the CPU 21 processes the tax rate 1 total memory area 22b and the independent tax rate 1 memory area 22f. If the tax rate 2 total is being displayed (FIG. 7E), the CPU 21 processes the tax rate 2 total memory area 22c and the independent tax rate 2 memory area 22g.

  According to the memory key operated in this manner and the tax calculation results (total display, total display of tax rate 1, total display of tax rate 2) displayed when the memory key is operated, the tax calculation memory function is provided. By changing the tax calculation result to be processed, the tax calculation result can be properly used and used more effectively.

  In the above description, an example in which the tax calculation based on two tax rates (tax rate 1 and tax rate 2) is executed is described. However, the calculator 10 that executes the tax calculation based on three or more tax rates is realized. Is also possible.

  In the above description, the result of the tax calculation based on the tax rate 1 according to the operation of the tax-included 1 calculation key 11b and the tax-excluded 1 calculation key 11d is stored as a total value in the tax rate 1 total memory area 22b, and the tax-included 2 calculation key is stored. The result of the tax calculation based on the tax rate 2 according to the operation of the tax calculation key 11e and the tax exemption 2 calculation key 11e is separately stored as a total value in the tax rate 2 total memory area 22c. The total value of each result may be stored separately.

  FIG. 9 is a diagram illustrating a specific example of numerical values stored in the tax calculation memory according to the present embodiment. The tax calculation memory shown in FIG. 9 is provided with a tax rate 1 total memory area 22b1 for tax-included calculation and a tax rate 1 total memory area 22b2 for tax-excluded calculation in a tax rate 1 total memory area 22b, and includes a tax rate 2 total memory area 22c in a tax rate 2 total memory area 22c. A tax rate 2 total memory area 22c1 for tax and a tax rate 2 total memory area 22c2 for tax exclusion calculation are provided.

  In this case, when executing the tax-inclusive calculation based on the tax rate 1 in response to the operation of the tax-inclusive 1 calculation key 11b, the CPU 21 stores (adds) the tax calculation result in the tax rate 1 total memory area 22b1 for the tax-inclusive calculation. That is, the total value of the tax-included calculation results at the tax rate 1 is stored in the tax rate 1 total memory area 22b1. Similarly, when the tax-exclusion calculation based on the tax rate 1 is executed in response to the operation of the tax-exclusion 1 calculation key 11d, the CPU 21 stores the tax calculation result in the tax rate 2 total memory area 22c1 for the tax-exclusion calculation ( Addition). That is, the total value of the tax exclusion calculation results at the tax rate 1 is stored in the tax rate 2 total memory area 22c1.

  Similarly, the CPU 21 stores the tax included calculation result according to the operation of the tax included 2 calculation key 11c in the tax rate 2 total memory area 22c1, and stores the tax included calculation result according to the operation of the tax excluded 2 calculation key 11e in the tax rate 2 total memory. It is stored in the area 22c2.

  In this way, by storing the tax calculation results separately not only for the tax rate but also for the tax-inclusive calculation and the tax-excluded calculation, the calculation of the tax-inclusive calculation at the tax rate 1 is performed in the same manner as in FIG. The results (tax-included amount, tax-excluded amount, tax amount) are displayed, for example, by operating the tax-included 1 calculation key 11b, and the calculation result (tax-included amount, tax-excluded amount, tax amount) of the tax-excluded calculation at the tax rate 1 is displayed, for example, the tax-excluded 1 calculation key It can be displayed by the operation of 11d. Also, in the same manner as in FIG. 7 (E) described above, the calculation result (tax-included amount, tax-excluded amount, tax amount) of the tax-inclusive calculation based on the tax rate 2 is displayed, for example, by operating the tax-inclusive 2 calculation key 11c. The calculation result (tax-included amount, tax-excluded amount, tax-amount) can be displayed, for example, by operating the tax-excluded 2 calculation key 11e.

  Note that the total value of the tax calculation based on the tax rate 1 is obtained by summing the numerical values stored in the tax rate 1 total memory area 22b1 and the tax rate 1 total memory area 22b2 for each of the tax-included amount, the tax-excluded amount, and the tax amount. Similarly, the total value of the tax calculation based on the tax rate 2 is obtained by summing the numerical values stored in the tax rate 2 total memory area 22c1 and the tax rate 2 total memory area 22c2 for each of the tax-included amount, the tax-excluded amount, and the tax amount. . Furthermore, regarding the total value stored in the tax total memory area 22d, the values of the tax-included 1 calculation keys 11b1 and 11b2 and the tax rate 2 total memory areas 22c1 and 22c2 are summed up for each of the tax-included amount, the tax-excluded amount, and the tax amount. Is required.

  In this way, by separately storing the calculation results of the tax-included calculation and the tax-excluded calculation, the calculation result of the tax-included calculation (total value) and the calculation result of the tax-excluded calculation (total value) are different for each tax rate used in the tax calculation. ) Can be easily confirmed.

  In the above embodiment, when the post-tax total mode is in the ON state, no operation is performed even if the tax-excluding 1 calculation key 11d and the tax-excluding 2 calculation key 11e are operated, that is, NOP is performed. Good.

  Specifically, when the tax-excluded 1 calculation key 11d is operated, if the CPU 21 determines that the post-tax total mode is in the ON state, the CPU 21 displays a first tax-included total corresponding to at least one numerical value. The tax-included total amount may be read from the tax rate 1 total memory area 22b and displayed on the display unit 12. Further, when the tax-excluded 1 calculation key 11d is operated in a state where the first tax-included total amount is displayed, the CPU 21 reads the first tax-excluded total amount corresponding to the first tax-included total amount from the tax rate 1 total memory area 22b. The amount may be read and displayed. Further, when the tax-excluded 1 calculation key 11d is operated in a state where the first tax-excluded amount is displayed, the CPU 21 reads out the first tax total amount corresponding to the first tax-included total amount from the tax rate 1 total memory area 22b. May be displayed. Furthermore, when the tax-excluded 1 calculation key 11d is operated, the CPU 21 may read out and display the first tax-included total amount from the tax rate 1 total memory area 22b.

  That is, after the total tax-included total amount is calculated, the calculator 10 calculates the first total tax-included total amount, the first total tax-excluded total amount calculated based on the tax rate 1, for each operation on the tax-excluded 1 calculation key 11d, The display may be switched to any one of the first total tax amounts. Thereby, the first total tax-included amount, the first total tax-excluded total amount, and the first tax total total amount can be easily confirmed.

  On the other hand, when the tax-excluded 2 calculation key 11e is operated, if the CPU 21 determines that the post-tax total mode is in the ON state, the CPU 21 indicates the total second tax-included total amount corresponding to at least one numerical value. May be read out from the tax rate 2 total memory area 22c and displayed on the display unit 12. Further, when the tax-excluded 2 calculation key 11e is operated in a state where the second tax-included total amount is displayed, the CPU 21 reads the second tax-excluded total amount corresponding to the second tax-included total amount from the tax rate 2 total memory area 22c. The amount may be read and displayed. Further, when the tax-excluded 2 calculation key 11e is operated in a state where the second tax-excluded amount is displayed, the CPU 21 reads the second tax-out total amount corresponding to the second tax-inclusive amount from the tax rate 2 total memory area 22c. May be displayed. Further, when the tax-excluded 2 calculation key 11e is operated, the CPU 21 may read out and display the second tax-included total amount from the tax rate 2 total memory area 22c.

  That is, after the total tax-included total amount is calculated, the calculator 10 calculates the second total tax-included total amount, the second total tax-excluded total amount calculated based on the tax rate 2, for each operation of the tax-excluded 2 calculation key 11e, The display may be switched to any one of the second total tax amounts. Thereby, the second total tax-included amount, the second total tax-excluded total amount, and the second tax total amount can be easily confirmed.

  In addition, the methods described in the embodiment, that is, the respective methods such as the processing shown in the flowcharts of FIGS. 3 to 7, can be executed by a computer as a program such as a memory card (ROM card, RAM card, etc.), a magnetic disk ( It can be stored and distributed on a recording medium such as a flexible disk, a hard disk, an optical disk (CD-ROM, DVD, etc.), a semiconductor memory, or the like. Then, the computer reads the program recorded on the external recording medium, and the operation is controlled by the program, so that the same processing as the function described in the embodiment can be realized.

  Also, program data for implementing each method can be transmitted over a network (Internet) in the form of a program code. Program data is transmitted from a computer (server device or the like) connected to the network (Internet). It is also possible to realize the same function as the above-described embodiment by taking in.

  It should be noted that the present invention is not limited to the embodiment, and can be variously modified in an implementation stage without departing from the scope of the invention. Furthermore, the embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. For example, even if some components are deleted from all the components shown in the embodiments or some components are combined, the problem described in the section of the problem to be solved by the invention can be solved. In the case where the effect described in the section of the effect can be obtained, a configuration in which this component is deleted or combined can be extracted as an invention.

  Hereinafter, the inventions described in the claims of the present application will be additionally described.

[1] In accordance with the input of the execution instruction of the tax-inclusive calculation, the tax-inclusive calculation using the numerical value as the tax-excluded amount is executed, and the numerical value related to the result of the tax-inclusive calculation is acquired as the tax-inclusive calculation result,
In accordance with the input of the tax exclusion calculation execution instruction, the tax exclusion calculation using the numerical value as the tax-included amount is performed, and the numerical value related to the result of the tax exclusion calculation is obtained as the tax exclusion calculation result,
A computer having a control unit for displaying, on a display unit, a tax calculation total value which is a sum of the tax-included calculation result and the tax-excluded calculation result in response to an input of an instruction to execute a total tax calculation display.

[2] The control unit includes:
In the tax-included calculation process, the tax-included amount, the tax-excluded amount and the tax amount are obtained as the tax-included calculation result,
In the tax exclusion calculation process, the tax-excluded amount, the tax-excluded amount and the tax amount are obtained as the tax-excluded calculation result,
While displaying the tax calculation total value on the display unit,
According to an input of an instruction to execute a numerical display relating to the result of tax calculation, which is one of the tax-included calculation and the tax-excluded calculation, any of a tax-included amount, a tax-excluded amount, and a tax amount as a numerical value related to the tax-calculated result Is selectively displayed on the display unit.

[3] The control unit includes:
In the tax-included calculation process, the acquired tax-included calculation result is added to the numerical value stored in the tax total memory, and the resulting numerical value is stored in the tax total memory.
In the processing of the tax exclusion calculation, the obtained tax exclusion calculation result, the numerical value of the result of adding to the numerical value stored in the tax total memory, stored in the tax total memory,
The computer according to [1] or [2], wherein in the tax calculation total display processing, a numerical value stored in the tax total memory is read out and displayed on the display unit as the tax calculation total value.

[4] The control unit includes:
While displaying the tax calculation total value on the display unit,
In response to the input of the instruction to execute the addition to the first independent memory, the value obtained by adding the numerical value stored in the tax total memory to the numerical value stored in the first independent memory, Stored in independent memory,
In response to the input of the instruction to perform the subtraction from the first independent memory, the numerical value stored in the tax total memory is subtracted from the numerical value stored in the first independent memory, 1 Store in independent memory,
The description according to [3], wherein the numerical value stored in the first independent memory is copied and stored in the tax total memory in response to an input of an instruction to execute the numerical value replication stored in the first independent memory. calculator.

[5] In response to input of an instruction to execute a first tax calculation, which is a tax-inclusive calculation using the first tax rate, the first tax calculation using the first tax rate using a numerical value excluding tax is executed, and Acquiring a numerical value related to the result of the first tax calculation based on one tax rate as a first tax calculation result,
In response to an input of an instruction to execute a first tax exemption calculation, which is a tax exemption calculation using the first tax rate, executing the first tax exemption calculation at the first tax rate using a numerical value as a tax-included amount, Obtaining a numerical value related to the result of the first tax exclusion calculation at the first tax rate as a first tax exclusion calculation result,
In response to input of an instruction to execute a second tax calculation, which is a tax-inclusive calculation using the second tax rate, the second tax calculation using the second tax rate using a numerical value as a tax-excluded amount is executed, and the second tax rate is calculated based on the second tax rate. Acquiring a numerical value related to the result of the second tax included calculation as a second tax calculated result,
In response to input of an instruction to execute a second tax exemption calculation, which is a tax exemption calculation using the second tax rate, executing the second tax exemption calculation at the second tax rate using a numerical value as a tax-included amount, Obtaining a numerical value related to the result of the second tax exclusion calculation at the second tax rate as a second tax exclusion calculation result,
According to the input of the execution instruction of the tax calculation total display, the first tax-included calculation result, the first tax-excluded calculation result, the second tax-included calculation result, and the total of the second tax-excluded calculation result are represented by the The calculator according to [1], wherein the calculator displays the total tax calculation value on the display unit.

[6] The control unit includes:
In the first tax-included calculation process, the tax-included amount, the tax-excluded amount, and the tax amount are obtained as the first tax-included calculation result,
In the processing of the first tax exclusion calculation, the tax-excluded amount, the tax-excluded amount and the tax amount are obtained as the first tax-excluded calculation result,
In the second tax-included calculation process, the tax-included amount, the tax-excluded amount, and the tax amount are obtained as the second tax-included calculation result,
In the processing of the second tax exclusion calculation, the tax-included amount, the tax exclusion amount and the tax amount are obtained as the second tax exclusion calculation result,
While displaying the tax calculation total value on the display unit,
An instruction to execute a numerical display related to the result of the first tax calculation, which is either the first tax calculation or the first tax calculation, and one of the second tax calculation and the second tax calculation. Any one of the first tax calculation and the second tax calculation according to any one of the first tax calculation and the second tax calculation in response to the input of any one of the numerical display execution instructions relating to the result of the second tax calculation The computer according to [5], wherein any one of a tax-included amount, a tax-excluded amount, and a tax amount as a numerical value related to a result of the tax calculation is selectively displayed on the display unit.

[7] The control unit includes:
In the first tax-included calculation process, a value obtained by adding the obtained first tax-included calculation result to a numerical value stored in the first tax total memory is stored in the first tax total memory;
In the processing of the first tax exclusion calculation, a value obtained by adding the obtained first tax exclusion calculation result to a numerical value stored in the first tax total memory is stored in the first tax total memory. ,
In the processing of the second tax calculation, the obtained second tax calculation result is added to the numerical value stored in the second tax total memory, and the resulting numerical value is stored in the second tax total memory.
In the processing of the second tax exclusion calculation, a value obtained by adding the obtained second tax exclusion calculation result to the numerical value stored in the second tax total memory is stored in the second tax total memory. ,
While displaying the tax calculation total value on the display unit,
In response to the input of one of the execution instructions, the first tax total memory and the second tax total memory store any of the tax-inclusive amount, the tax-excluded amount, and the tax amount as numerical values related to the result of any of the tax calculations. The computer according to [6], wherein the computer reads out from any of the tax total memories corresponding to any of the execution instructions and selectively displays the data on the display unit.

[8] The control unit includes:
In the first tax-included calculation process, a value obtained by adding the obtained first tax-included calculation result to a numerical value stored in the first tax total memory is stored in the first tax total memory;
In the processing of the first tax exclusion calculation, a value obtained by adding the obtained first tax exclusion calculation result to a numerical value stored in the first tax total memory is stored in the first tax total memory. ,
In the processing of the second tax calculation, the obtained second tax calculation result is added to the numerical value stored in the second tax total memory, and the resulting numerical value is stored in the second tax total memory.
In the processing of the second tax exclusion calculation, a value obtained by adding the obtained second tax exclusion calculation result to the numerical value stored in the second tax total memory is stored in the second tax total memory. ,
In the tax calculation total display process, a total value of a numerical value stored in the first tax total memory and a numerical value stored in the second tax total memory is used as the tax calculation total value in the display unit. The computer according to [5] or [6], which is displayed on a computer.

[9] The control unit includes:
While displaying the tax calculation total value on the display unit,
According to the input of the execution instruction of addition to the independent memory,
A numerical value obtained by adding the numerical value stored in the first tax total memory to the numerical value stored in the first independent memory is stored in the first independent memory, and the second tax total memory is stored in the second tax total memory. A numerical value resulting from adding the stored numerical value to the numerical value stored in the second independent memory is stored in the second independent memory,
In response to the instruction to execute the subtraction from the independent memory,
A numerical value obtained by subtracting the numerical value stored in the first tax total memory from the numerical value stored in the first independent memory is stored in the first independent memory, and stored in the second tax total memory. A value obtained by subtracting the stored numerical value from the numerical value stored in the second independent memory is stored in the second independent memory,
In accordance with the input of the numerical copy execution instruction stored in the independent memory,
Duplicating the numerical value stored in the first independent memory and storing it in the first tax total memory, and duplicating the numerical value stored in the second independent memory and copying the numerical value stored in the second independent memory The computer according to [8], which is stored in a computer.

[10] In accordance with the input of the execution instruction of the tax-inclusive calculation, the tax-inclusive calculation using the numerical value as the tax-excluded amount is executed, and the tax amount related to the tax-inclusive calculation is acquired,
In accordance with the input of the tax exclusion calculation execution instruction, execute the tax exclusion calculation using the numerical value as the tax-included amount, to obtain the tax amount related to the tax exclusion calculation,
A computer having a control unit for displaying, on a display unit, a tax total value that is a sum of a tax amount related to the tax-inclusive calculation and a tax amount related to the tax-exempt calculation in response to an input of an instruction to execute tax calculation total display.

[11] In response to input of an instruction to execute a first tax calculation, which is a tax-inclusive calculation using the first tax rate, the first tax calculation using a numerical value as a tax-excluded amount is executed, and the first tax-inclusive calculation is performed. Get the tax amount,
In response to input of an instruction to execute a first tax exemption calculation, which is a tax exemption calculation using the first tax rate, the first tax exemption calculation is executed using a numerical value as a tax-included amount, and the first tax exemption calculation is performed. Obtain the tax amount pertaining to
In response to the input of the instruction to execute the second tax calculation, which is the tax-inclusive calculation using the second tax rate, the second tax-inclusive calculation using the numerical value excluding tax is executed, and the tax amount related to the second tax-inclusive calculation is obtained. do it,
In response to an input of an instruction to execute a second tax exemption calculation that is a tax exemption calculation using the second tax rate, the second tax exemption calculation is executed using a numerical value as a tax-included amount, and the second tax exemption calculation is performed. Obtain the tax amount pertaining to
According to the input of the execution instruction of the tax calculation total display, the tax amount related to the first tax-included calculation, the tax amount related to the first tax-excluded calculation, the tax amount related to the second tax-included calculation, and the second tax-excluded calculation The computer according to [10], wherein a total of the tax amounts according to (1) is displayed on the display unit as the total tax value.

[12] A calculation method executed by a control unit of the computer,
In accordance with the input of the tax-inclusive calculation execution instruction, the tax-inclusive calculation using the numerical value as a tax-excluded amount is executed, and a numerical value related to the result of the tax-inclusive calculation is obtained as a tax-inclusive calculation result,
In accordance with the input of the tax exclusion calculation execution instruction, the tax exclusion calculation using the numerical value as the tax-included amount is performed, and the numerical value related to the result of the tax exclusion calculation is obtained as the tax exclusion calculation result,
A calculation method for displaying, on a display unit, a tax calculation total value that is a sum of the tax-included calculation result and the tax-excluded calculation result in response to an input of an execution instruction for displaying a total tax calculation.

[13] In response to an input of an instruction to execute a first tax calculation, which is a tax-inclusive calculation using the first tax rate, the first tax calculation using the first tax rate using a numerical value as a tax-excluded amount is performed, and Acquiring a numerical value related to the result of the first tax calculation based on one tax rate as a first tax calculation result,
In response to an input of an instruction to execute a first tax exemption calculation, which is a tax exemption calculation using the first tax rate, executing the first tax exemption calculation at the first tax rate using a numerical value as a tax-included amount, Obtaining a numerical value related to the result of the first tax exclusion calculation at the first tax rate as a first tax exclusion calculation result,
In response to input of an instruction to execute a second tax calculation, which is a tax-inclusive calculation using the second tax rate, the second tax calculation using the second tax rate using a numerical value as a tax-excluded amount is executed, and the second tax rate is calculated based on the second tax rate. Acquiring a numerical value related to the result of the second tax included calculation as a second tax calculated result,
In response to input of an instruction to execute a second tax exemption calculation, which is a tax exemption calculation using the second tax rate, executing the second tax exemption calculation at the second tax rate using a numerical value as a tax-included amount, Obtaining a numerical value related to the result of the second tax exclusion calculation at the second tax rate as a second tax exclusion calculation result,
According to the input of the execution instruction of the tax calculation total display, the first tax-included calculation result, the first tax-excluded calculation result, the second tax-included calculation result, and the total of the second tax-excluded calculation result are represented by the As a tax calculation total value, to be displayed on the display unit,
The calculation method according to [12], further comprising:

[14] A calculation method executed by a control unit of the computer,
In accordance with the input of the execution instruction of the tax-inclusive calculation, the tax-inclusive calculation using the numerical value as the tax-excluded amount is executed, and the tax amount related to the tax-inclusive calculation is acquired,
In accordance with the input of the tax exclusion calculation execution instruction, execute the tax exclusion calculation using the numerical value as the tax-included amount, to obtain the tax amount related to the tax exclusion calculation,
A calculation method for displaying, on a display unit, a tax total value that is a sum of a tax amount related to the tax-inclusive calculation and a tax amount related to the tax-exempt calculation in response to an input of an instruction to execute a tax calculation total display.

[15] In response to the input of the instruction to execute the first tax-included calculation, which is the tax-included calculation using the first tax rate, the first tax-included calculation using the numerical value as the tax-excluded amount is executed, and the first tax-included calculation is performed. Get the tax amount,
In response to input of an instruction to execute a first tax exemption calculation, which is a tax exemption calculation using the first tax rate, the first tax exemption calculation is executed using a numerical value as a tax-included amount, and the first tax exemption calculation is performed. Obtain the tax amount pertaining to
In response to the input of the instruction to execute the second tax calculation, which is the tax-inclusive calculation using the second tax rate, the second tax-inclusive calculation using the numerical value excluding tax is executed, and the tax amount related to the second tax-inclusive calculation is obtained. do it,
In response to an input of an instruction to execute a second tax exemption calculation that is a tax exemption calculation using the second tax rate, the second tax exemption calculation is executed using a numerical value as a tax-included amount, and the second tax exemption calculation is performed. Obtain the tax amount pertaining to
According to the input of the execution instruction of the tax calculation total display, the tax amount related to the first tax-included calculation, the tax amount related to the first tax-excluded calculation, the tax amount related to the second tax-included calculation, and the second tax-excluded calculation The calculation method according to [14], further comprising: displaying the total of the tax amounts according to the above as the total tax value on the display unit.

[16] By the control unit of the computer,
In accordance with the input of the execution instruction of the tax-inclusive calculation, the tax-inclusive calculation using the numerical value as the tax-excluded amount is performed, and the numerical value related to the result of the tax-inclusive calculation is obtained as the tax-inclusive calculation result.
In accordance with the input of the tax exclusion calculation execution instruction, the tax exclusion calculation is performed using a numerical value as a tax-included amount, and a numerical value related to the result of the tax exclusion calculation is obtained as a tax exclusion calculation result.
A program for displaying, on a display unit, a total tax calculation value, which is the sum of the tax-included calculation result and the tax-excluded calculation result, in response to an input of an instruction to execute a total tax calculation display.

[17] The control unit of the computer further includes:
In response to input of an instruction to execute a first tax calculation, which is a tax-inclusive calculation using the first tax rate, the first tax calculation using the first tax rate using a numerical value as a tax-excluded amount is executed, and the first tax rate is calculated using the first tax rate. A numerical value related to the result of the first tax-included calculation is obtained as a first tax-included calculation result,
In response to an input of an instruction to execute a first tax exemption calculation, which is a tax exemption calculation using the first tax rate, executing the first tax exemption calculation at the first tax rate using a numerical value as a tax-included amount, A numerical value relating to the result of the first tax exclusion calculation at the first tax rate is obtained as a first tax exclusion calculation result,
In response to input of an instruction to execute a second tax calculation, which is a tax-inclusive calculation using the second tax rate, the second tax calculation using the second tax rate using a numerical value as a tax-excluded amount is executed, and the second tax rate is calculated based on the second tax rate. A numerical value related to the result of the second tax calculation is acquired as a second tax calculation result,
In response to input of an instruction to execute a second tax exemption calculation, which is a tax exemption calculation using the second tax rate, executing the second tax exemption calculation at the second tax rate using a numerical value as a tax-included amount, A numerical value related to the result of the second tax exclusion calculation at the second tax rate is obtained as a second tax exclusion calculation result,
According to the input of the execution instruction of the tax calculation total display, the first tax-included calculation result, the first tax-excluded calculation result, the second tax-included calculation result, and the total of the second tax-excluded calculation result are represented by the The program according to [16], wherein the program displays the total tax calculation value on the display unit.

[18] By the control unit of the computer,
In accordance with the input of the execution instruction of the tax-inclusive calculation, the tax-inclusive calculation using the numerical value as the tax-excluded amount is executed, and the tax amount related to the tax-inclusive calculation is acquired,
In accordance with the input of the tax exclusion calculation execution instruction, execute the tax exclusion calculation using the numerical value as the tax-included amount, to obtain the tax amount related to the tax exclusion calculation,
A program for displaying, on a display unit, a tax total value that is a sum of a tax amount related to the tax-inclusive calculation and a tax amount related to the tax-excluding calculation in response to an input of an instruction to execute a total tax calculation display.

[19] The control unit of the computer further includes:
In response to input of an instruction to execute the first tax-included calculation, which is the tax-included calculation using the first tax rate, the first tax-included calculation using the numerical value as a tax-excluded amount is executed, and the tax amount related to the first tax-included calculation is obtained. do it,
In response to input of an instruction to execute a first tax exemption calculation, which is a tax exemption calculation using the first tax rate, the first tax exemption calculation is executed using a numerical value as a tax-included amount, and the first tax exemption calculation is performed. Obtain the tax amount pertaining to
In response to the input of the instruction to execute the second tax calculation, which is the tax-inclusive calculation using the second tax rate, the second tax-inclusive calculation using the numerical value excluding tax is executed, and the tax amount related to the second tax-inclusive calculation is obtained. do it,
In response to an input of an instruction to execute a second tax exemption calculation that is a tax exemption calculation using the second tax rate, the second tax exemption calculation is executed using a numerical value as a tax-included amount, and the second tax exemption calculation is performed. Obtain the tax amount pertaining to
According to the input of the execution instruction of the tax calculation total display, the tax amount related to the first tax-included calculation, the tax amount related to the first tax-excluded calculation, the tax amount related to the second tax-included calculation, and the second tax-excluded calculation The program according to [18], wherein a total of the tax amounts according to (1) is displayed on the display unit as the total tax value.

Claims (19)

In accordance with the input of the tax-inclusive calculation execution instruction, the tax-inclusive calculation using the numerical value as a tax-excluded amount is executed, and a numerical value related to the result of the tax-inclusive calculation is obtained as a tax-inclusive calculation result,
In accordance with the input of the tax exclusion calculation execution instruction, the tax exclusion calculation using the numerical value as the tax-included amount is performed, and the numerical value related to the result of the tax exclusion calculation is obtained as the tax exclusion calculation result,
In response to the input of the execution instruction of the tax calculation total display, the tax calculation total value which is the sum of the tax-included calculation result and the tax-excluded calculation result is displayed on a display unit,
A computer having a control unit. The control unit includes:
In the tax-included calculation process, the tax-included amount, the tax-excluded amount and the tax amount are obtained as the tax-included calculation result,
In the tax exclusion calculation process, the tax-excluded amount, the tax-excluded amount and the tax amount are obtained as the tax-excluded calculation result,
While displaying the tax calculation total value on the display unit,
According to an input of an instruction to execute a numerical display relating to the result of tax calculation, which is one of the tax-included calculation and the tax-excluded calculation, any of a tax-included amount, a tax-excluded amount, and a tax amount as a numerical value related to the tax-calculated result Is selectively displayed on the display unit,
The computer according to claim 1. The control unit includes:
In the tax-included calculation process, the acquired tax-included calculation result is added to the numerical value stored in the tax total memory, and the resulting numerical value is stored in the tax total memory.
In the processing of the tax exclusion calculation, the obtained tax exclusion calculation result, the numerical value of the result of adding to the numerical value stored in the tax total memory, stored in the tax total memory,
In the processing of the tax calculation total display, the numerical value stored in the tax total memory is read and displayed on the display unit as the tax calculation total value.
The computer according to claim 1 or 2. The control unit includes:
While displaying the tax calculation total value on the display unit,
In response to the input of the instruction to execute the addition to the first independent memory, the value obtained by adding the numerical value stored in the tax total memory to the numerical value stored in the first independent memory, Stored in independent memory,
In response to the input of the instruction to perform the subtraction from the first independent memory, the numerical value stored in the tax total memory is subtracted from the numerical value stored in the first independent memory, 1 Store in independent memory,
In response to the input of the instruction to execute the number duplication stored in the first independent memory, the numerical value stored in the first independent memory is duplicated and stored in the tax total memory,
The computer according to claim 3. In response to input of an instruction to execute a first tax calculation, which is a tax-inclusive calculation using the first tax rate, the first tax calculation using the first tax rate using a numerical value as a tax-excluded amount is executed, and the first tax rate is calculated using the first tax rate. Acquiring a numerical value related to the result of the first tax-included calculation as a first tax-included calculation result,
In response to an input of an instruction to execute a first tax exemption calculation, which is a tax exemption calculation using the first tax rate, executing the first tax exemption calculation at the first tax rate using a numerical value as a tax-included amount, Obtaining a numerical value related to the result of the first tax exclusion calculation at the first tax rate as a first tax exclusion calculation result,
In response to input of an instruction to execute a second tax calculation, which is a tax-inclusive calculation using the second tax rate, the second tax calculation using the second tax rate using a numerical value as a tax-excluded amount is executed, and the second tax rate is calculated based on the second tax rate. Acquiring a numerical value related to the result of the second tax included calculation as a second tax calculated result,
In response to input of an instruction to execute a second tax exemption calculation, which is a tax exemption calculation using the second tax rate, executing the second tax exemption calculation at the second tax rate using a numerical value as a tax-included amount, Obtaining a numerical value related to the result of the second tax exclusion calculation at the second tax rate as a second tax exclusion calculation result,
According to the input of the execution instruction of the tax calculation total display, the first tax-included calculation result, the first tax-excluded calculation result, the second tax-included calculation result, and the total of the second tax-excluded calculation result are represented by the As a tax calculation total value, to be displayed on the display unit,
The computer according to claim 1. The control unit includes:
In the first tax-included calculation process, the tax-included amount, the tax-excluded amount, and the tax amount are obtained as the first tax-included calculation result,
In the processing of the first tax exclusion calculation, the tax-excluded amount, the tax-excluded amount and the tax amount are obtained as the first tax-excluded calculation result,
In the second tax-included calculation process, the tax-included amount, the tax-excluded amount, and the tax amount are obtained as the second tax-included calculation result,
In the processing of the second tax exclusion calculation, the tax-included amount, the tax exclusion amount and the tax amount are obtained as the second tax exclusion calculation result,
While displaying the tax calculation total value on the display unit,
An instruction to execute a numerical display related to the result of the first tax calculation, which is either the first tax calculation or the first tax calculation, and one of the second tax calculation and the second tax calculation. Any one of the first tax calculation and the second tax calculation according to any one of the first tax calculation and the second tax calculation in response to the input of any one of the numerical display execution instructions relating to the result of the second tax calculation Any of the tax-included amount, the tax-excluded amount, and the tax amount as numerical values related to the result of the tax calculation, are selectively displayed on the display unit,
The computer according to claim 5. The control unit includes:
In the first tax-included calculation process, a value obtained by adding the obtained first tax-included calculation result to a numerical value stored in the first tax total memory is stored in the first tax total memory;
In the processing of the first tax exclusion calculation, a value obtained by adding the obtained first tax exclusion calculation result to a numerical value stored in the first tax total memory is stored in the first tax total memory. ,
In the processing of the second tax calculation, the obtained second tax calculation result is added to the numerical value stored in the second tax total memory, and the resulting numerical value is stored in the second tax total memory.
In the processing of the second tax exclusion calculation, a value obtained by adding the obtained second tax exclusion calculation result to the numerical value stored in the second tax total memory is stored in the second tax total memory. ,
While displaying the tax calculation total value on the display unit,
In response to the input of one of the execution instructions, the first tax total memory and the second tax total memory store any of the tax-inclusive amount, the tax-excluded amount, and the tax amount as numerical values related to the result of any of the tax calculations. Reading from any of the tax total memories according to any of the execution instructions, and selectively displaying the data on the display unit;
The computer according to claim 6. The control unit includes:
In the first tax-included calculation process, a value obtained by adding the obtained first tax-included calculation result to a numerical value stored in the first tax total memory is stored in the first tax total memory;
In the processing of the first tax exclusion calculation, a value obtained by adding the obtained first tax exclusion calculation result to a numerical value stored in the first tax total memory is stored in the first tax total memory. ,
In the processing of the second tax calculation, the obtained second tax calculation result is added to the numerical value stored in the second tax total memory, and the resulting numerical value is stored in the second tax total memory.
In the processing of the second tax exclusion calculation, a value obtained by adding the obtained second tax exclusion calculation result to the numerical value stored in the second tax total memory is stored in the second tax total memory. ,
In the tax calculation total display process, a total value of a numerical value stored in the first tax total memory and a numerical value stored in the second tax total memory is used as the tax calculation total value in the display unit. To display,
A computer according to claim 5. The control unit includes:
While displaying the tax calculation total value on the display unit,
According to the input of the execution instruction of addition to the independent memory,
A numerical value obtained by adding the numerical value stored in the first tax total memory to the numerical value stored in the first independent memory is stored in the first independent memory, and the second tax total memory is stored in the second tax total memory. A numerical value resulting from adding the stored numerical value to the numerical value stored in the second independent memory is stored in the second independent memory,
In response to the instruction to execute the subtraction from the independent memory,
A numerical value obtained by subtracting the numerical value stored in the first tax total memory from the numerical value stored in the first independent memory is stored in the first independent memory, and stored in the second tax total memory. A value obtained by subtracting the stored numerical value from the numerical value stored in the second independent memory is stored in the second independent memory,
In accordance with the input of the numerical copy execution instruction stored in the independent memory,
Duplicating the numerical value stored in the first independent memory and storing it in the first tax total memory, and duplicating the numerical value stored in the second independent memory and copying the numerical value stored in the second independent memory To memorize,
The computer according to claim 8. In accordance with the input of the execution instruction of the tax-inclusive calculation, the tax-inclusive calculation using the numerical value as the tax-excluded amount is executed, and the tax amount related to the tax-inclusive calculation is acquired,
In accordance with the input of the tax exclusion calculation execution instruction, execute the tax exclusion calculation using the numerical value as the tax-included amount, to obtain the tax amount related to the tax exclusion calculation,
In response to the input of the execution instruction of the tax calculation total display, the tax amount related to the tax-inclusive calculation and the tax total value that is the total of the tax amount related to the tax-excluded calculation are displayed on the display unit.
A computer having a control unit. In response to input of an instruction to execute the first tax-included calculation, which is the tax-included calculation using the first tax rate, the first tax-included calculation using the numerical value as a tax-excluded amount is executed, and the tax amount related to the first tax-included calculation is obtained. do it,
In response to input of an instruction to execute a first tax exemption calculation, which is a tax exemption calculation using the first tax rate, the first tax exemption calculation is executed using a numerical value as a tax-included amount, and the first tax exemption calculation is performed. Obtain the tax amount pertaining to
In response to the input of the instruction to execute the second tax calculation, which is the tax-inclusive calculation using the second tax rate, the second tax-inclusive calculation using the numerical value excluding tax is executed, and the tax amount related to the second tax-inclusive calculation is obtained. do it,
In response to an input of an instruction to execute a second tax exemption calculation that is a tax exemption calculation using the second tax rate, the second tax exemption calculation is executed using a numerical value as a tax-included amount, and the second tax exemption calculation is performed. Obtain the tax amount pertaining to
According to the input of the execution instruction of the tax calculation total display, the tax amount related to the first tax-included calculation, the tax amount related to the first tax-excluded calculation, the tax amount related to the second tax-included calculation, and the second tax-excluded calculation The total of the tax amount pertaining to, as the tax total value, is displayed on the display unit,
The computer according to claim 10. A calculation method executed by a control unit of the computer,
In accordance with the input of the tax-inclusive calculation execution instruction, the tax-inclusive calculation using the numerical value as a tax-excluded amount is executed, and a numerical value related to the result of the tax-inclusive calculation is obtained as a tax-inclusive calculation result,
In accordance with the input of the tax exclusion calculation execution instruction, the tax exclusion calculation using the numerical value as the tax-included amount is performed, and the numerical value related to the result of the tax exclusion calculation is obtained as the tax exclusion calculation result,
A calculation method for displaying, on a display unit, a tax calculation total value that is a sum of the tax-included calculation result and the tax-excluded calculation result in response to an input of an execution instruction for displaying a total tax calculation. In response to input of an instruction to execute a first tax calculation, which is a tax-inclusive calculation using the first tax rate, the first tax calculation using the first tax rate using a numerical value as a tax-excluded amount is executed, and the first tax rate is calculated using the first tax rate. Acquiring a numerical value related to the result of the first tax-included calculation as a first tax-included calculation result,
In response to an input of an instruction to execute a first tax exemption calculation, which is a tax exemption calculation using the first tax rate, executing the first tax exemption calculation at the first tax rate using a numerical value as a tax-included amount, Obtaining a numerical value related to the result of the first tax exclusion calculation at the first tax rate as a first tax exclusion calculation result,
In response to input of an instruction to execute a second tax calculation, which is a tax-inclusive calculation using the second tax rate, the second tax calculation using the second tax rate using a numerical value as a tax-excluded amount is executed, and the second tax rate is calculated based on the second tax rate. Acquiring a numerical value related to the result of the second tax included calculation as a second tax calculated result,
In response to input of an instruction to execute a second tax exemption calculation, which is a tax exemption calculation using the second tax rate, executing the second tax exemption calculation at the second tax rate using a numerical value as a tax-included amount, Obtaining a numerical value related to the result of the second tax exclusion calculation at the second tax rate as a second tax exclusion calculation result,
According to the input of the execution instruction of the tax calculation total display, the first tax-included calculation result, the first tax-excluded calculation result, the second tax-included calculation result, and the total of the second tax-excluded calculation result are represented by the As a tax calculation total value, to be displayed on the display unit,
13. The calculation method according to claim 12, further comprising: A calculation method executed by a control unit of the computer,
In accordance with the input of the execution instruction of the tax-inclusive calculation, the tax-inclusive calculation using the numerical value as the tax-excluded amount is executed, and the tax amount related to the tax-inclusive calculation is acquired,
In accordance with the input of the tax exclusion calculation execution instruction, execute the tax exclusion calculation using the numerical value as the tax-included amount, to obtain the tax amount related to the tax exclusion calculation,
A calculation method for displaying, on a display unit, a tax total value that is a sum of a tax amount related to the tax-inclusive calculation and a tax amount related to the tax-exempt calculation in response to an input of an instruction to execute a tax calculation total display. In response to input of an instruction to execute the first tax-included calculation, which is the tax-included calculation using the first tax rate, the first tax-included calculation using the numerical value as a tax-excluded amount is executed, and the tax amount related to the first tax-included calculation is obtained. do it,
In response to input of an instruction to execute a first tax exemption calculation, which is a tax exemption calculation using the first tax rate, the first tax exemption calculation is executed using a numerical value as a tax-included amount, and the first tax exemption calculation is performed. Obtain the tax amount pertaining to
In response to the input of the instruction to execute the second tax calculation, which is the tax-inclusive calculation using the second tax rate, the second tax-inclusive calculation using the numerical value excluding tax is executed, and the tax amount related to the second tax-inclusive calculation is obtained. do it,
In response to an input of an instruction to execute a second tax exemption calculation that is a tax exemption calculation using the second tax rate, the second tax exemption calculation is executed using a numerical value as a tax-included amount, and the second tax exemption calculation is performed. Obtain the tax amount pertaining to
According to the input of the execution instruction of the tax calculation total display, the tax amount related to the first tax-included calculation, the tax amount related to the first tax-excluded calculation, the tax amount related to the second tax-included calculation, and the second tax-excluded calculation The total of the tax amount pertaining to, as the tax total value, is displayed on the display unit,
15. The calculation method according to claim 14, further comprising: By the control unit of the computer,
In accordance with the input of the execution instruction of the tax-inclusive calculation, the tax-inclusive calculation using the numerical value as the tax-excluded amount is performed, and the numerical value related to the result of the tax-inclusive calculation is obtained as the tax-inclusive calculation result.
In accordance with the input of the tax exclusion calculation execution instruction, the tax exclusion calculation is performed using a numerical value as a tax-included amount, and a numerical value related to the result of the tax exclusion calculation is obtained as a tax exclusion calculation result.
In response to the input of the execution instruction of the tax calculation total display, the tax calculation total value which is the sum of the tax-included calculation result and the tax-excluded calculation result is displayed on a display unit,
program. The control unit of the computer further includes:
In response to input of an instruction to execute a first tax calculation, which is a tax-inclusive calculation using the first tax rate, the first tax calculation using the first tax rate using a numerical value as a tax-excluded amount is executed, and the first tax rate is calculated using the first tax rate. A numerical value related to the result of the first tax-included calculation is obtained as a first tax-included calculation result,
In response to an input of an instruction to execute a first tax exemption calculation, which is a tax exemption calculation using the first tax rate, executing the first tax exemption calculation at the first tax rate using a numerical value as a tax-included amount, A numerical value relating to the result of the first tax exclusion calculation at the first tax rate is obtained as a first tax exclusion calculation result,
In response to input of an instruction to execute a second tax calculation, which is a tax-inclusive calculation using the second tax rate, the second tax calculation using the second tax rate using a numerical value as a tax-excluded amount is executed, and the second tax rate is calculated based on the second tax rate. A numerical value related to the result of the second tax calculation is acquired as a second tax calculation result,
In response to input of an instruction to execute a second tax exemption calculation, which is a tax exemption calculation using the second tax rate, executing the second tax exemption calculation at the second tax rate using a numerical value as a tax-included amount, A numerical value related to the result of the second tax exclusion calculation at the second tax rate is obtained as a second tax exclusion calculation result,
According to the input of the execution instruction of the tax calculation total display, the first tax-included calculation result, the first tax-excluded calculation result, the second tax-included calculation result, and the total of the second tax-excluded calculation result are represented by the As a tax calculation total value, to be displayed on the display unit,
The program according to claim 16. By the control unit of the computer,
In accordance with the input of the execution instruction of the tax-inclusive calculation, the tax-inclusive calculation using the numerical value as the tax-excluded amount is executed, and the tax amount related to the tax-inclusive calculation is acquired,
In accordance with the input of the tax exclusion calculation execution instruction, execute the tax exclusion calculation using the numerical value as the tax-included amount, to obtain the tax amount related to the tax exclusion calculation,
In response to the input of the execution instruction of the tax calculation total display, the tax amount related to the tax-inclusive calculation and the tax total value that is the total of the tax amount related to the tax-excluded calculation are displayed on the display unit.
program. The control unit of the computer further includes:
In response to input of an instruction to execute the first tax-included calculation, which is the tax-included calculation using the first tax rate, the first tax-included calculation using the numerical value as a tax-excluded amount is executed, and the tax amount related to the first tax-included calculation is obtained. do it,
In response to input of an instruction to execute a first tax exemption calculation, which is a tax exemption calculation using the first tax rate, the first tax exemption calculation is executed using a numerical value as a tax-included amount, and the first tax exemption calculation is performed. Obtain the tax amount pertaining to
In response to the input of the instruction to execute the second tax calculation, which is the tax-inclusive calculation using the second tax rate, the second tax-inclusive calculation using the numerical value excluding tax is executed, and the tax amount related to the second tax-inclusive calculation is obtained. do it,
In response to an input of an instruction to execute a second tax exemption calculation that is a tax exemption calculation using the second tax rate, the second tax exemption calculation is executed using a numerical value as a tax-included amount, and the second tax exemption calculation is performed. Obtain the tax amount pertaining to
According to the input of the execution instruction of the tax calculation total display, the tax amount related to the first tax-included calculation, the tax amount related to the first tax-excluded calculation, the tax amount related to the second tax-included calculation, and the second tax-excluded calculation The total of the tax amount pertaining to, as the tax total value, is displayed on the display unit,
The program according to claim 18.