JP2024053141A - Payment processing device and payment processing program - Google Patents

Abstract

[Problem] To provide a payment processing device and a payment processing program that efficiently maximizes the discount amount when discounts are applied. [Solution] The payment processing device of this embodiment includes a product information acquisition unit and a control unit. The product information acquisition unit acquires product information including the unit price of the product. The control unit, based on the product information, a discount flag that discounts the unit price by a preset discount rate, a discount flag that discounts the unit price by a preset discount amount, and information stored in a storage unit that stores the discount flag and the status of the discount flag being enabled, calculates a discount result by discounting the unit price based on the discount rate if the discount flag is enabled, and calculates a discount result based on the discount amount if the discount flag is enabled. [Selected Figure] Figure 6

Description

Embodiments of the present invention relate to a payment processing device and a payment processing program.

Conventionally, when a product or service is traded at a retail store such as a supermarket, a POS (Point Of Sales) terminal is used to make a payment. Some POS terminals that process such payments have a function of applying a discount to a preset unit price or subtotal of the product or service.
However, depending on the combination of discounts applied to the payment, it may take time to output the maximum discount amount. In such cases, the customer's stay time for one transaction increases, and work efficiency decreases.

JP 2012-226479 A

The problem that this invention aims to solve is to provide a payment processing device and a payment processing program that efficiently maximizes the discount amount when discounts are applied.

To achieve the above object, the payment processing device of this embodiment includes a product information acquisition unit and a control unit. The product information acquisition unit acquires product information including the unit price of the product. The control unit, based on the product information, a discount flag that discounts the unit price by a preset discount rate, a discount flag that discounts the unit price by a preset discount amount, and information stored in a storage unit that stores the discount flag and the state in which the discount flag is enabled, calculates a discount result by discounting the unit price based on the discount rate if the discount flag is enabled, and calculates a discount result based on the discount amount if the discount flag is enabled.

FIG. 2 is a block diagram showing an example of a POS terminal according to the first embodiment. FIG. 4 is a diagram showing an example of a data structure of a PLU master according to the first embodiment. FIG. 4 is a diagram showing an example of the data structure of a discount setting management file according to the first embodiment. FIG. 4 is a diagram showing an example of the data structure of an accounting file according to the first embodiment. 11 is a flowchart showing an example of a payment process in which a discount operation is performed for each unit price in the payment processing device according to the first embodiment. 11 is a flowchart showing an example of a recalculation process of the payment processing device according to the first embodiment. 11 is a flowchart showing an example of a discount flag management process of the payment processing device according to the first embodiment. 11 is a flowchart showing an example of a payment process for performing a discount operation on a subtotal in the payment processing device according to the first embodiment. FIG. 11 is a diagram showing an example of the data structure of a discount setting management file according to the second embodiment. 13 is a flowchart showing an example of a payment process in which a discount operation is performed for each unit price in the payment processing device according to the second embodiment. 13 is a flowchart showing an example of a payment process for performing a discount operation on a subtotal in the payment processing device according to the second embodiment. 13 is a flowchart showing an example of a payment process in which a discount operation is performed for each unit price in the payment processing device according to the third embodiment. 13 is a flowchart showing an example of a payment process for performing a discount operation on a subtotal in the payment processing device according to the third embodiment.

First Embodiment
Hereinafter, the present embodiment will be described with reference to the drawings.
In this embodiment, a POS terminal 1 will be described as an example of a payment processing device that performs payment processing and is used in retail stores such as supermarkets. The unit price of a product in this embodiment may be an amount excluding tax or an amount including tax.

FIG. 1 is a block diagram showing an example of a POS terminal 1 according to the first embodiment.
The POS terminal 1 is composed of a control unit 100, a memory unit 101, a product reading unit 102, an operation unit 103, a store clerk display unit 104, a customer-facing display unit 105, a printing unit 106, a communication I/F 107, and a payment medium reading unit 108, and each unit is connected via a bus.

The control unit 100 includes a CPU (Central Processing Unit) 1001, a ROM (Read Only Memory) 1002, and a RAM (Random Access Memory) 1003. The CPU 1001 controls the entire POS terminal 1. The ROM 1002 stores various programs and various data, such as programs used to drive the CPU 1001. The RAM 1003 is used as a work area for the CPU 1001, and expands the various programs and data stored in the ROM 1002 and the storage unit 101. The control unit 101 executes various functional processes of the POS terminal 1 by the CPU 1001 operating in accordance with the ROM 1002 and information processing programs stored in the storage unit 101 and expanded in the RAM 1003.

The storage unit 101 is composed of a storage medium such as a HDD (Hard Disc Drive) or a flash memory. The storage unit 101 stores software such as an operating system and other necessary application programs for the operation of the POS terminal 1, user information, etc. The storage unit 101 also stores a PLU (Price Look Up) master 1011, a discount setting management file 1012, an accounting file 1013, etc.
The PLU master 1011, the discount setting management file 1012, and the accounting file 1013 may be stored in a storage medium or device accessible from the POS terminal 1, and may also be stored in an external HDD, a management terminal or server installed in the store, etc.

The product reading unit 102 recognizes product codes attached to products and the like by optically or by imaging. A product code is a code symbol such as a one-dimensional code, such as a barcode, or a two-dimensional code. The product reading unit 102 decodes the recognized code symbol and acquires information about the product, such as a PLU code indicated by the code symbol. The product reading unit 102 may identify the product using an object recognition method that recognizes the product based on product features such as color and unevenness. In addition to the product code attached to the product, the product reading unit 102 may also read a gift certificate (hereinafter, a coupon) that has a code symbol, such as a one-dimensional code or a two-dimensional code, that contains information about a discount on the product, and acquire information about the discount on the product (hereinafter, coupon information). The control unit 101 may perform the process of decoding the acquired code symbol.

The operation unit 103 outputs commands entered by the user to the POS terminal 1. The operation unit 103 is equipped with a numeric keypad consisting of numeric keys "0" through "9" for outputting commands to the POS terminal 1, a subtotal key for issuing a command to execute a subtotal, a discount end key for ending the acceptance of discounts, and the like, and outputs a signal indicating which key has been pressed as a command. The operation unit 103 may also be equipped with a discount preset key for discounting a set amount from the unit price or subtotal of the product, or a discount preset key for discounting a set discount rate from the unit price or subtotal of the product. Also, the discount preset key and the discount preset key may each be set to a different value.

The clerk display unit 104 and the customer display unit 105 display information related to the POS terminal 1. The clerk display unit 104 and the customer display unit 105 are liquid crystal displays and organic EL (Electro Luminescence) display devices.

The clerk display unit 104 displays information for the clerk to operate. For example, the clerk display unit 104 displays product information read by the product reading unit 102, as well as screens related to payments with electronic money or credit cards. If the clerk display unit 104 is a touch panel, it may display an area for inputting a command to move from reading to accounting processing on the POS terminal 1, or an area related to a preset for adding a pre-set amount to the subtotal, which is the purchase amount. The clerk display unit 104 may also display an area related to a discount preset for discounting a set amount from the unit price or subtotal of the product, or an area related to a discount preset for discounting a set discount rate from the unit price or subtotal of the product.

The customer-facing display unit 105 displays information to help the shopper make a payment. For example, the customer-facing display unit 105 displays the name of the product to be purchased, the price of the product, and a subtotal, which is the total price of the products. The customer-facing display device 15 may also be a touch panel for selecting a payment method, etc.

The printing unit 106 is, for example, a thermal printer that prints various information on receipt paper, which is thermal paper. The printing unit 106 issues a receipt on which the name, unit price, subtotal, total amount, discount amount, etc. of the products purchased by the customer are printed.

The communication I/F 107 transmits and receives data to and from devices connected via wired or wireless communication.

The payment medium reading unit 108 has magnetic reading, IC (Integrated Circuit) chip reading, near-field wireless communication, etc., and reads the payment medium. The payment medium is, for example, a card for cashless payment or a mobile terminal with a cashless payment app installed, and is associated with user information consisting of a user ID, electronic money balance, etc. The user information is associated based on, for example, a user ID provided by the payment medium. The payment medium reading unit 108 may be configured as an integral part of the POS terminal 1, or may be configured as an external device that operates by connecting to the POS terminal 1.

FIG. 2 is a diagram showing an example of a data structure of the PLU master 1011 according to the first embodiment.
The PLU master 1011 is composed of PLU data of products sold at a store such as a retail shop where the POS terminal 1 is installed. Each PLU data is composed of items such as a "PLU code" uniquely assigned to each product, a "product name" indicating the name of the product, and a "unit price" indicating the selling price of the product.

Figure 3 is a diagram showing an example of the data structure of the discount setting management file 1012 according to the first embodiment. The discount setting management file 1012 is composed of records corresponding to information on discounts stored in the coupons acquired by the product reading unit 102. A discount type and a flag are described in each record. The flag is set to either "0" (invalid) or "1" (valid). If the discount type flag for the discount (hereinafter, discount flag) is "1", the discount indicated in the discount type input in the settlement process described below is implemented, and if it is "0", the discount indicated in the discount type is not implemented. If the discount type flag for the discount (hereinafter, discount flag) is "1", the discount indicated in the discount type input in the settlement process described below is implemented, and if it is "0", the discount indicated in the discount type is not implemented. In addition, the discount flag may be limited in advance to a valid number. The discount setting management file 1012 may be composed in part or in whole of records corresponding to preset keys for issuing discount commands or areas related to discounts provided on the operation unit 103 or the store clerk display unit 104.

The discount setting management file 1012 configured in this way is edited, for example, by a discount setting process executed by the POS terminal 1. That is, in the process of applying this discount, input of the discount type to be set for the coupon information acquired by the product reading unit 102 and the flag value is accepted, and the contents of the discount setting management file 1012 are updated with the input discount type and flag value.

Figure 4 shows an example of the data structure of the accounting file 1013. The accounting file 1013 is composed of accounting information that shows the history of transactions settled by the POS terminal 1. Each piece of accounting information is composed of items such as the "transaction number" and "transaction date and time" assigned to each transaction, the "PLU data" of each product settled in that transaction, the "subtotal amount" and "total amount" of the transaction, and the "recalculation result" of the recalculation process that is executed after the acceptance of the discount has been completed.

In addition, when coupon information related to a discount is acquired and a discount is implemented, a "discount flag" item corresponding to the coupon information is added to the accounting information, and when coupon information related to a discount is acquired and a discount is implemented, a "discount flag" item corresponding to the coupon information is added, and the discount amount and the discounted amount are written into these items. In this way, when a discount is implemented on the unit price, an item according to the type is added and the discount amount is written, making it possible to identify the amount of the discount implemented in the transaction and the type of discount.

The following describes the payment process that is executed at the POS terminal 1 when purchasing a product.

Figure 5 is a flowchart showing an example of payment processing for performing discount operations for each unit price in the payment processing device according to the first embodiment. In this embodiment, an example will be described in which the discount or discount information is obtained from coupon information written on a coupon with a code symbol written on it. In addition, in this embodiment, the number of times the discount flag is enabled is limited.

The control unit 100 accepts input of product information (ACT101). The control unit 100 acquires product information purchased by the customer via the product reading unit 102. In other words, the control unit 100 acquires the PLU code. After acquiring the PLU code, the control unit 100 extracts PLU data including the PLU code from the PLU master 1011 based on the acquired PLU code, and expands it in the RAM 1003. The control unit 100 also extracts the product name, unit price, etc. from the PLU data, and displays them on the store clerk display unit 104 and the customer display unit 105.

The control unit 100 receives coupon information (ACT 102). The control unit 100 acquires coupon information from the coupon via the product reading unit 102. After acquiring the coupon information, the control unit 100 turns on the flag related to the corresponding discount or discount (ACT 103). The control unit 100 changes the flag of the corresponding discount type from the coupon information to "1" and makes the discount valid. In addition, regarding the discount flag, the flag of the record of the discount type with the highest discount rate is changed to "1". In other words, when coupon information related to multiple discounts is acquired, the flag of the high discount rate is changed to "1", and the flags related to the other discount rates are changed to "0". After the discount is valid, the control unit 100 performs a calculation process based on the discount amount or discount rate that has become valid from the unit price (ACT 104). After the calculation is completed, the control unit 100 displays the calculation result on the store clerk display unit 104 and the customer display unit 105 (ACT 105).

When the control unit 100 acquires another coupon (YES in ACT 106), it returns to ACT 103 to change the flag corresponding to the acquired coupon information to "1." Therefore, when the flag corresponding to the next acquired coupon information is enabled, the enabled discount amount or discount amount is calculated based on the calculation result that has already been calculated. Also, if coupon information for a discount coupon is once accepted, and then coupon information for a different discount rate is accepted, only the record with the higher discount rate is set to "1," and all others are set to "0." In other words, when the control unit 100 enables a flag related to the discount rate, it controls so that only one is enabled.

When the last coupon information to be used in the transaction has been acquired (ACT 106, NO), the control unit 100 checks whether the next product has been entered (ACT 107). If the next product has not been entered (ACT 107, NO), the discount end key is entered (ACT 108). The user of the POS terminal 1 presses or taps the discount end key provided on the operation unit 103 or the store clerk display unit 104 to indicate that the input related to the discount has been completed, and the control unit 100 ends the acceptance of the discount.

If the control unit 100 acquires other product information via the product reading unit 102 (YES in ACT 107), it skips ACT 108 and proceeds to ACT 109.

After the acceptance of the discount applied to the settlement is completed, the control unit 100 performs a recalculation process (ACT 109). The control unit 100 re-discounts the unit price of the extracted product under certain conditions.

The control unit 100 performs a payment process (ACT110). The control unit 100 performs payment based on the recalculation process result, which is the result of the recalculation process. The control unit 100 may obtain information on the payment medium using the payment medium reading unit 108 at the time of payment and perform the payment.

The control unit 100 issues the result of the payment process as a receipt (ACT 111). The control unit 100 uses the printing unit 106 to output a receipt that lists the product name, unit price, subtotal, total amount, and discount amount purchased in the payment process.

The control unit 100 saves the accounting information (ACT 112). The control unit 100 generates the information on the transaction as accounting information and saves it in the accounting file 1013.

Next, the recalculation process will be described. FIG. 6 is a flowchart showing an example of the recalculation process of the payment processing device according to the first embodiment. The recalculation process is performed in parallel with the payment process. The recalculation process is a discount or discount calculation that is performed under certain conditions after the discount or discount calculation that was performed when the coupon was acquired.

The control unit 100 retrieves the product information (ACT 201). The control unit 100 expands the product information acquired during the payment process into the RAM 1003.

The control unit 100 extracts the unit price (ACT 202). The control unit 100 extracts only the unit price to perform a discount and stores it in the RAM 1003.

The control unit 100 calls the discount flag (ACT 203). The control unit 100 calls a valid record from among the discount types stored in the discount setting management file 1012, and expands it in the RAM 1003.

The control unit 100 extracts the discount rate (ACT 204). The control unit 100 extracts the discount rate from the record expanded in the RAM 1003.

The control unit 100 performs a discount calculation (ACT 205). After extracting the unit price and discount rate, the control unit 100 multiplies the unit price by the discount rate. For example, if the discount rate of the record with the enabled flag is 10%, the discount amount is calculated by multiplying the unit price by 0.1. After calculating the discount amount, the control unit 100 subtracts the discount amount from the unit price to calculate the discounted amount.

After the discount calculation is completed, the control unit 100 calls the discount flag (ACT 206). The control unit 100 calls the records related to discounts that are valid among the records of discount types stored in the discount setting management file 1012, and expands them in the RAM 1003.

The control unit 100 extracts the discount amount (ACT 207). The control unit 100 extracts the record with the highest discount amount from the records expanded in RAM 1003. Specifically, if the discount flags for discounting the target product by 500 yen, 100 yen, and 50 yen are enabled among the records expanded in RAM 1003, the control unit 100 extracts the record with the highest discount amount of 500 yen. Furthermore, when extracting the discount amount, the control unit 100 does not extract it from a record from which a discount amount has already been extracted.

The control unit 100 performs a discount calculation (ACT 208). The control unit 100 subtracts the extracted discount amount from the unit price after the discount calculation. Therefore, when the control unit 100 extracts the unit price and the discount amount, it subtracts the discounted unit price from the discount amount and outputs the discounted calculation result.

After completing the discount calculation and price reduction calculation, the control unit 100 checks whether the remaining amount is 0 yen or less (ACT 209). The control unit 100 checks whether the remaining amount, which is the result of the discount calculation and price reduction calculation, is 0 yen or less.

If the balance is 0 yen or more (NO in ACT 209), the control unit 100 checks whether other discount flags are enabled (ACT 210). If other discount flags are enabled (YES in ACT 210), the control unit 100 extracts the highest discount amount from the records that have not been extracted.

If the balance is 0 yen or more, or if the balance is 0 yen or more but there is no valid flag (YES in ACT 209, NO in ACT 210), the control unit 100 confirms the transaction amount (ACT 211). When the transaction amount is confirmed, the control unit 100 also confirms the valid flag.

Figure 7 is a flowchart showing an example of discount flag management processing of the payment processing device according to the first embodiment. In this embodiment, the number of active discount flags is limited to five. In addition, the discount flag management processing may be performed in parallel with the payment processing and recalculation processing.

The control unit 100 acquires the discount flag (ACT 301). The control unit 100 acquires records related to discounts for which the flag is enabled among the discount types.

The control unit 100 checks whether the number of enabled discount flags is equal to or less than a preset number. If the number of enabled discount flags is equal to or less than the preset number (NO in ACT301), the control unit 100 disables all discount flags and returns to the process of accepting coupon information related to discounts in the payment process (ACT102).

Figure 8 is a flow chart showing an example of a payment process in which a discount operation is performed on a subtotal in the payment processing device according to the first embodiment. The POS terminal 1, which is the payment processing device, may perform payment processing not only for each unit price but also for the subtotal. Also, parts that are the same as those in the embodiment of Figures 1 to 7 are indicated with the same reference numerals.

After acquiring the product information and displaying it on the clerk display unit 104 and the customer display unit 105, the control unit 100 checks whether the next product information has been entered (ACT 401). If product information has been entered (YES in ACT 401), the process returns to ACT 101. If all product information has been entered (NO in ACT 401), the control unit 100 waits until the subtotal key is entered.

When the subtotal key is input (ACT 402), the control unit 100 accepts coupon information (ACT 102).

After accepting the coupon information, the control unit 100 performs a recalculation process. The control unit 100 performs discount and price reduction calculations on the subtotal.

With this configuration, the payment processing device performs a calculation once during the reception process to activate the flag for discounting or deduction, then applies only one discount rate to perform a discount calculation, and then performs a recalculation process to perform a discount calculation after the discount calculation, thereby efficiently performing a payment with the maximum discount amount.

(Second embodiment)
The second embodiment is directed to a payment process when a member discount is utilized. In the second embodiment, the same components as those in the embodiment shown in Figs. 1 to 8 are designated by the same reference numerals.

The member discount is a discount calculation process that is executed when the POS terminal 1 acquires a medium such as a member card that stores member information. The member card is acquired by the product reading unit 102. In this embodiment, the discount that becomes effective when a member card is acquired is referred to as the member discount, and the discount that becomes effective when a coupon or a preset provided in the operation unit 103 or the store clerk display unit 104 is referred to as the regular discount.

Figure 9 is a diagram showing an example of the data structure of the discount setting management file 2012 according to the second embodiment. The discount setting management file 2012 is composed of records related to regular discounts as well as records related to member discounts. The records related to member discounts describe the discount type and a flag. The flag is set to either "0" (invalid) or "1" (valid). If this flag is "1", the discount indicated in the discount type entered in the payment process described below is implemented, and if the flag is "0", the discount indicated in the discount type is not implemented. Furthermore, in this embodiment, the control unit 100 does not enable the flags for the member discount and the discount type corresponding to the coupon information in parallel.

Figure 10 is a flowchart showing an example of payment processing for performing discount operations for each unit price in a payment processing device according to the second embodiment. After the reception of information regarding the discount that will be the normal discount is completed, the control unit 100 acquires member card information (ACT 501). Information regarding the member card is acquired via the product reading unit 102 or the payment medium reading unit 108.

The control unit 100 determines whether the discount rate for the member discount is higher than the discount rate for the regular discount (ACT 502). The control unit 100 determines which discount rate is higher, the discount rate for the member discount or the discount rate for the regular discount. If the discount rate for the member discount is lower (NO in ACT 502), the flag for the regular discount remains valid. If the discount rate for the member discount is higher (YES in ACT 502), the flag for the regular discount is invalidated (ACT 503). The control unit 100 validates the flag written in the record for the member discount (ACT 504).

The POS terminal 1, which is a payment processing device, may also perform discount and price reduction calculations on the subtotal. Figure 11 is a flowchart showing an example of payment processing for performing a price reduction operation on the subtotal of the payment processing device according to the second embodiment. In addition to the payment processing on the subtotal described in Figure 8, the control unit 100 executes the processing of ACT501 to ACT504 after the processing of ACT106 is completed.

Even with this configuration, the POS terminal 1, which is the payment processing device, can efficiently perform payments that maximize the discount amount. In addition, by setting a priority order for the flags to be enabled, efficient processing can be performed in stores that offer member discounts, even if the member discount and discounts provided by coupons, etc., are at the same rate.

(Third embodiment)
The third embodiment is directed to a payment process when a member card having a payment function is used. The same reference numerals are used for the components of the third embodiment as those of the embodiment shown in Figures 1 to 11.

The membership card with payment function is acquired by the product reading unit 102 or the payment medium reading unit 108. In this embodiment, a discount that becomes effective when a membership card is acquired is referred to as a member discount, and a discount that becomes effective by inputting a coupon or a preset provided in the operation unit 103 or the store clerk display unit 104 is referred to as a regular discount.

Figure 12 is a flowchart showing an example of payment processing in which a discount operation is performed for each unit price in the payment processing device according to the third embodiment. The control unit 100 acquires member card information (ACT 701) when performing payment processing (ACT 110). Note that the control unit 100 does not perform payment until the recalculation process is completed.

After the discount end key is entered, the control unit 100 executes the first recalculation process (ACT 109). The control unit 100 determines whether the discount rate of the member discount is higher than the discount rate of the regular discount (ACT 702). The control unit 100 determines which discount rate is higher, the discount rate of the member discount or the discount rate of the regular discount. If the discount rate of the member discount is lower (NO in ACT 702), the flag of the regular discount remains valid and the process moves to the settlement process (ACT 706). If the discount rate of the member discount is higher (YES in ACT 702), the flag of the regular discount is invalidated (ACT 703). The control unit 100 validates the flag written in the record of the member discount (ACT 704).

The control unit 100 performs a recalculation process (ACT 705). If the member discount flag is enabled, the control unit 100 performs a discount calculation based on the member discount.

The control unit 100 performs payment processing (ACT 706). The control unit 100 performs payment based on the acquired membership card information.

The POS terminal 1 may also perform the recalculation process when performing a discount operation on the subtotal. Fig. 13 is a flowchart showing an example of a payment process for performing a discount operation on the subtotal in the payment processing device according to the third embodiment.
The control unit 100 accepts coupon information after the subtotal key input, and acquires member card information after the recalculation process is completed. After acquiring the card information, the control unit 100 checks whether the member discount is a higher discount rate than the regular discount, and performs the settlement process while keeping the regular discount flag enabled, or activates the member discount flag and performs the recalculation process.

Even with this configuration, the POS terminal 1, which is a payment processing device, can efficiently perform a payment with the maximum discount amount. In addition, by performing the payment after a recalculation process, it is possible to prevent a payment from being made when the discount amount is not the maximum amount.

The configuration disclosed in the above embodiment can be modified in various ways. Specific modifications include, for example, the following.

The control unit 100 executes a recalculation process, and if the result of the recalculation process shows that the remaining balance is 0 yen or less and a valid flag exists, the flag may be invalidated after the transaction amount is confirmed. In addition, the store clerk returns to the shopper a coupon that lists the invalidated discount type and the corresponding coupon information.

In addition, in the second and third embodiments, the recalculation process is performed twice, but the recalculation process may be performed only once after the membership card information is accepted.

Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various forms, and various omissions, substitutions, and modifications can be made without departing from the gist of the invention. These embodiments and their modifications are included within the scope and gist of the invention, and are included in the scope of the invention and its equivalents as set forth in the claims.

100: Control unit 101: Storage unit 1011: PLU master 1012: Discount setting management file 1013: Accounting file

Claims (5)

a product information acquisition unit for acquiring product information including a unit price of the product;
a control unit which, based on the product information, a discount flag for discounting the unit price by a preset discount rate, a discount flag for discounting the unit price by a preset discount amount, and information stored in a storage unit which stores the discount flag and a state in which the discount flag is enabled, calculates a discount result by discounting the unit price based on the discount rate when the discount flag is enabled, and calculates a discount result based on the discount amount when the discount flag is enabled;
A payment processing device comprising: The payment processing device according to claim 1, wherein the storage unit stores two or more discount flags with different discount rates and two or more discount flags with different discount amounts, and the control unit activates the discount flag with the higher discount rate based on this information, and performs discounts starting from the discount flag with the higher discount amount. a product information acquisition unit for acquiring product information including a unit price of the product;
an operation unit for a customer to declare completion of input of the product he/she wishes to purchase;
a control unit which, based on the product information, a discount flag for discounting the unit price by a preset discount rate, a discount flag for discounting the unit price by a preset discount amount, and information stored in a storage unit which stores the discount flag and a state in which the discount flag is enabled, calculates a discount result by applying a discount to the total unit price based on the discount rate when the discount flag is enabled, and calculates a discount result by applying a discount from the discount result based on the discount amount when the discount flag is enabled;
A payment processing device comprising: The payment processing device according to claim 2, wherein the storage unit stores two or more discount flags having different discount rates and two or more discount flags having different discount amounts, and the control unit activates the discount flag with the higher discount rate based on this information, and performs discounts starting from the discount flag with the higher discount amount. A payment processing device that executes payment processing,
A product information acquisition means for acquiring product information including a unit price of the product;
a storage means for storing the product information, a discount flag for discounting the unit price by a preset discount rate, a discount flag for discounting the unit price by a preset discount amount, and a status indicating whether the discount flag and the discount flag are valid;
a discount calculation means for calculating a discount result by discounting a unit price based on the discount rate when the discount flag is valid;
discount calculation means for performing a discount from the discount result based on the discount amount when the discount flag is valid;
A payment processing program that realizes the above.

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