JP2005222196A - Adjustment method and system for tradable coupon by discount rate setting - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To set a discount rate for merchandise for sale by quantity, and to use up all the purchase desired sum. <P>SOLUTION: When a purchase desired sum and a discount rate from a price excluding tax of merchandise for sale by quantity are preliminarily set, a price calculating part 25 calculates the price excluding tax from the purchase desired sum by a predetermined tax rate, and calculates a discount sum from the price excluding tax. Then, when the discount sum of the arithmetic result exceeds a predetermined value, the discount sum is defined as the next purchase desired sum, and the next price excluding tax is calculated from this, and the next discount sum is calculated from the price excluding tax, and defined as the next purchase desired sum, and such procedures are repeated. Then, when the discount sum as the arithmetic result becomes a negligible small sum, for example, "zero" by rounding it off by a decimal point or less, the initially set purchase desired sum is defined as a purchase sum including a tax. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention makes it easy to purchase the full amount of the face value recorded on a voucher when purchasing a quantity sale such as liquid, cereal, seasoning, etc. that is discounted with a rewritable voucher such as a prepaid card or a point card. The present invention relates to a settlement method and system for a voucher that can be used up.

  The conventional method and system for paying a voucher by setting a discount rate can only be purchased within the range of the amount recorded on the voucher.

  For example, the voucher shown in FIG. 5 is a prepaid card 1 having a face value of 5000 yen. In the data processing device 102, when the prepaid card 1 is mounted on the card mounting unit 123, the amount recorded by the data reading unit 124 from the prepaid card 1 is read and displayed on the data display unit 126 and displayed on the price calculation unit 125. Inform.

  For example, if the price calculation unit 125 is a mass sales item for which the tax amount of 5% is applied to the nominal price of 5000 yen and the tax is 5% from the displayed list price without the consumption tax The calculation of the price will be described with reference to FIG. 5 and FIG. Here, it is assumed that the quantity sold by weight is determined by the fixed price sales price, and the price calculation unit 125 outputs the fixed price for the fixed price displayed in the store. Further, the face value of the prepaid card 1 is 5000 yen, and the discount rate is 5%. In addition, it is assumed that the price calculation unit 125 has already read the limit value of 5000 yen from the attached prepaid card 1.

  First, the sales price calculation unit 125 receives an input (procedure S101) of a desired purchase amount of 5000 yen and a discount rate of 5% from the data input unit 121. Since the input amount does not exceed the limit amount 5000, the amount (5000 ÷ 1.05 =) 4762 yen (rounded off) without the consumption tax (5%) is calculated from the desired purchase amount 5000 yen (rounded off) (procedure S102). For simplification, this is output as a sale price for a fixed price for sale.

  Next, 238 yen (4762 × 0.05 =) equivalent to 5% of the regular price sales price is calculated as a discount amount (step S103). Therefore, the difference (4762 -238 yen =) 4524 yen is calculated as the discounted sales price (step S104). In these steps S103 and S104, the sales price after the discount may be calculated first.

  The sales price calculation unit 125 determines 4750 yen, which is obtained by adding a consumption tax to the sales price (4524 × 1.05 =), as the purchase price (step S105). As a result, the remaining amount of the prepaid card 1 is calculated as 250 yen, displayed on the data display unit 126, and the record is updated via the data reading unit 124 (step S106).

  In the above method and system for cash voucher settlement, as a simple means, the discount is settled within the range of the face value of the cash voucher. There was a drawback that it was difficult to use up.

  The problem to be solved is that even when discounting, the full face value of the voucher cannot be used up easily.

  In the present invention, since a discount rate is set for a volume product and all of the desired purchase price is used up, a discount rate is set in advance from the purchase price and the tax-excluded price of the volume product. The first tax-excluded price is calculated at a predetermined tax rate, and the first discount amount is calculated from the tax-excluded price. Next, if the first discount amount of this calculation result exceeds a negligible small value, the next discount price is calculated from this desired purchase amount with this first discount amount as the next desired purchase amount. Repeat the procedure to calculate the next discount amount from the tax-excluded price. Next, when the discount amount of this calculation result is less than a negligible small amount, for example, rounded off to the nearest decimal point, and becomes the amount of “zero”, the desired purchase amount is the purchase amount including tax. To do.

  In addition, since the first tax-excluded price obtained from the purchase price including tax and the predetermined tax rate is the selling price of the mass-sold goods, the total sum of the discounts obtained in the calculation is obtained as the total sum of the stored discounts. The sum of the discount total and the sales price is calculated to obtain a fixed price sales price, and the display is externally displayed including a screen display.

  In a specific configuration, the system according to the present invention includes a data input unit that inputs a desired purchase amount and a discount rate, a tax rate storage unit that stores a predetermined tax rate in advance, and a voucher storage that stores the voucher. A data reading unit that reads and writes recorded information by accessing a card that is mounted, a price calculation unit, and a data display unit that receives data from the price calculation unit and displays it on the screen.

  The price calculation unit having the characteristics receives the initial purchase desired amount and discount rate from the data input unit and the tax rate from the tax rate storage unit, and calculates the first tax-excluded price of the received initial purchase amount from the tax rate. The first discount amount of the first tax-excluded price is calculated from the discount rate, and when the calculated discount amount exceeds the predetermined value, the first discount amount is set as the next purchase desired amount, and the purchase request The next tax-excluded price is calculated from the amount and the tax rate, and the next discount amount of the next tax-excluded price is calculated sequentially from the discount rate, and the calculated discount amount is negligible, for example, a decimal point. When rounded off to “zero” below, the purchase desired amount is output as a purchase amount including tax, including a screen display.

  With this configuration, the entire amount initially set as the purchase desired amount can be made the purchase amount including tax. That is, when the face value of the voucher is set as a purchase desired amount, all of the face amount can be used up.

  In addition, when the cash voucher is a card having a face value, the price calculation unit can update the amount obtained by subtracting the purchase amount from the face value with the card to a new face value through the data reading unit. If the voucher is in currency, change processing is possible.

  In addition, since the first tax-excluded price obtained from the purchase amount and the predetermined tax rate is the sales price after discounting the mass-sales product, the price calculation unit discounts the sum of the discounts calculated in the calculation. It can be obtained as a total amount, and the sum of the discounted total amount and the selling price can be calculated to obtain a fixed price sales price, which can be output externally including a screen display.

  With this fixed price sales price, the customer can know the tax-excluded amount in the case of the fixed price purchase corresponding to the purchase price, and it is easy to convert the measured value of the volume sales product.

  The system according to the present invention further includes a volume vending machine that sells and sells a volume sale product, a sales volume that receives the price for the fixed price from the price calculation unit, converts it to a sales volume, notifies the volume vending machine, and instructs to start the sales. Receive the purchase amount, discount rate, and face value of the voucher from the quantity conversion unit and the price calculation unit, and purchase the remaining amount when receiving the remaining amount for the notification sales amount from the volume vending machine along with the shutdown It is desirable to further include a balance update unit that applies the amount to the amount and reversely calculates the balance, and includes a screen display and externally outputs the balance. When the cash voucher is a card, the balance update unit can instruct the data reading unit to update the balance and update the face value of the card.

  With this configuration, for example, refilling of a cash voucher can be performed when refueling is stopped when a gasoline tank is full while refueling a gasoline amount corresponding to a desired purchase amount by refueling at a gas station.

  According to the present invention, a method for adjusting a cash voucher by setting a discount rate and its system first obtains an initial tax-excluded price from the desired purchase amount and a tax rate, obtains an initial discount price from the initial tax-excluded price, If the discount amount is a purchaseable amount, the next discounted price and the next discount amount are calculated using the first discount amount as the next purchase amount, and this is calculated until the discount amount becomes “zero”. The operation is repeated. In this way, when the discount amount becomes “zero”, the amount initially set as the purchase desired amount can be made the purchase amount including tax. That is, when the face value of the voucher is set as the purchase desired amount, an effect that all the face amount can be used up is produced.

  When purchasing a volume product that is discounted using the face value of the voucher as the purchase amount, the purpose of using up all the face value is calculated by calculating the tax-excluded price calculated from the purchase amount at a specified discount rate. Then, the discount amount is used as a purchase desired amount, and the tax-excluded price of the discount amount and the discount amount are determined as the next tax-excluded price and the next discount amount. By reducing the discount amount calculated by repeating this procedure to “zero”, the first purchase desired amount is directly used as a purchase amount including tax.

  That is, when the initial purchase desired amount is the face value of the voucher, the above-described purpose of using up all the face value is achieved. Furthermore, in the procedure, since the calculation is performed according to the discount rate, the discount rate with respect to the list price can be easily changed. In addition, discounts and taxes can be calculated from the discount rate and tax rate, and the amount discounted as the sales price from the determined purchase price and the fixed price volume sales price for weighing the quantity sold can be obtained. it can.

  Details of the present invention will be described below with reference to the drawings, but some terms are defined collectively. The voucher may be a currency or a point card, for example. When the remaining amount is generated, it can be dealt with change if it is a currency, or it can be handled by rewriting the face value if it is a prepaid card. The purchase desired amount or the purchase amount is an amount that is a payment target of a customer who purchases a volume product. The actual purchase amount paid by the customer is the sum of the sales price, which is the consideration for the mass sales, and the tax amount for this sales price. The tax amount is determined by the tax rate on the sales price. The price of a mass sale item includes a fixed price set in a storefront display or a mass vending machine based on a unit of measure and a sales unit price after being discounted by a discount rate. Therefore, even if the sales price after the discount is calculated, it is necessary to obtain the price for the fixed price for the weighing of the volume vending machine.

  Therefore, it is assumed that the list price of the mass sale item is displayed at the mass sale store, and the mass vending machine measures the quantity sale item by converting the amount of the price. That is, even if the price is discounted, the sales volume must be converted based on the list price before the discount. This price is the fixed price sales price.

  The tax amount may be a percentage of the sales price like consumption tax, but if the sales price includes product price and gasoline tax like gasoline tax, it will be calculated separately for the product price and tax price. It will be.

  A first embodiment of the present invention will be described with reference to FIG.

  In the configuration shown in the figure, a prepaid card 1 as a voucher and a data processing device 2 for calculating a purchase price and a fixed price sale price are shown. The data processing device 2 includes a data input unit 21, a consumption tax rate storage unit 22, a cash voucher storage unit 23, a data reading unit 24, a price calculation unit 25, and a data display unit 26.

  The data input unit 21 sends the input desired purchase amount and the discount rate to the price calculation unit 25. The consumption tax rate storage unit 22 stores the consumption tax rate in advance and provides it to the price calculation unit 25. The voucher storage unit 23 stores the prepaid card 1 that is a voucher. The data reading unit 24 accesses the stored prepaid card 1 to read / write recorded information. The data display unit 26 receives predetermined information such as the amount and price calculated by the price calculation unit 25 and displays it on the screen.

  The price calculation unit 25 has the characteristics of the present invention, and details will be described below with reference to FIG. 1 and FIG.

  FIG. 2 is a diagram showing an embodiment of a main operation procedure in the price calculation unit 25. The calculation is rounded off.

  First, the price calculation unit 25 receives the desired purchase amount (for example, 5000 yen) and the discount rate (5%) from the data input unit 21 and the consumption tax rate (5%) from the consumption tax rate storage unit 22 (procedure S1). The consumption tax-excluded price of 4762 yen is calculated from the tax rate (by 5000 yen x 100/105 =) (procedure S2), and the discount price of 238 yen of this tax-excluded price is calculated from the discount rate (4762 yen) Calculate (by S5 / 100 =) (procedure S3).

  The discount amount 238 yen of the calculation result is compared with a negligible small amount equal to or less than a predetermined value (step S4). Here, a value equal to or less than a predetermined value is set to a value that becomes “zero” when rounded off to the nearest decimal point.

  The discount amount 238 yen is a case where the procedure S4 is "NO" and does not reach the predetermined value or less. The tax-excluded price when the calculation result discount amount 238 yen is set as the next purchase desired amount is the next tax-excluded price 227. The calculation is performed as a circle (by 238 yen × 100/105 =) (step S5). Next, similarly to the above, the next discount amount of 11 yen of the next tax-excluded price is calculated from the discount rate (by 227 yen × 5/100 =) (procedure S6) and added to the previously obtained discount price of 238 yen. The total discount amount (238 yen +11 yen =) is stored as 249 yen (step S7).

  Subsequently, it returns to procedure S4 and repeats a procedure. That is, since the discount amount 11 yen of the calculation result in step S6 is not “zero”, the next discount amount “1” yen and the next discount amount “0” are sequentially calculated again by steps S5 to S7. The discount amount is added together and the combined discount amount of 250 yen is saved.

  When the calculation result discount amount in step S6 is “zero yen” and step S4 is “YES”, the desired purchase amount of 5000 yen previously input is set to 5000 yen including tax and the data display Characters are displayed on the unit 26 (step S10) to inform the outside.

  Furthermore, the price calculation unit 25 already has the sales price 4762 yen excluding consumption tax from the purchase price 5000 yen including tax and the consumption tax rate 5% in the above step S2, and the total stored in this 4762 yen is stored. The total discount price of 250 yen is added to calculate the fixed price sales price of 5012 yen (step S11).

  Accordingly, the price calculation unit 25 displays the price sale price 5012 yen on the data display unit 26 on the screen and sells 5012 yen at the fixed price before tax reduction, or the customer purchases the external price, for example. Output to the vending machine for weighing (step S12).

  As a result, all of the desired purchase amount of 5000 yen can be applied to the purchase amount by repeating steps S4 to S7. Accordingly, if all of the vouchers are set as purchase desired amounts, all of the face value can be used up. When a part of the voucher is set as the desired purchase price, the remaining amount obtained by subtracting the determined purchase price from the face value is notified to the data reading unit 24 as a balance, and the face value of the prepaid card 1 is updated to the balance.

  Further, in the above step S10, the display of the purchase price of 5000 yen including the tax that the trader receives payment from the customer can be confirmed together with the customer. In step S13, the price of the fixed price measured by the trader in this business and the fixed price of the quantity sold by the customer can be indicated by the fixed price sold price 5012 yen.

  In the above description, the consumption tax has been described using the calculation formula based on the external tax. However, in the case of the internal tax, it can be calculated using the calculation formula for the internal tax.

  A second embodiment of the present invention will be described with reference to FIGS.

  The data processing device 3 shown in FIG. 3 is provided in a gas station and is connected to a volume vending machine (not shown) for refueling. In addition, the gasoline price is “100 yen” with a gasoline tax per liter of 56 yen and a tax-excluded product price of 44 yen, and a consumption tax of 5% is added to this price. Discounts shall be applied to the sales price excluding various taxes.

  The illustrated data processing apparatus 3 includes a data input unit 31, a consumption tax rate storage unit 32, a cash voucher storage unit 33, a data reading unit 34, a price calculation unit 35, a data display unit 36, an oil tax storage unit 37, and a sales volume conversion. A unit 38 and a balance update unit 39 are provided. The data input unit 31, the consumption tax rate storage unit 32, the voucher storage unit 33, the data reading unit 34, and the data display unit 36 have the same functions as the components having the same names shown in FIG. To do.

  The price calculation unit 35 will be described later with reference to the flowchart of FIG. It is assumed that the oil tax storage unit 37 stores the gasoline tax described above. The sales volume conversion unit 38 converts the above-mentioned fixed price sales price into the sales volume of gasoline as a volume sales product, starts the volume vending machine and notifies the converted sales volume. The balance update unit 39 receives a notification of the remaining amount with respect to the sales amount notified at the time of start-up together with the stop notification when the volume vending machine finishes measuring the sales amount or the gasoline tank stops filling due to a full tank. The balance is calculated by back-calculating the corresponding amount and notified to the data reading unit 34.

  Next, a main operation procedure centering on the price calculation unit 35 of the second embodiment will be described with reference to FIG. From step S1 to step S7 and step S10 to step S13 shown in the figure, it is only necessary to replace the number 20 in the description of the first embodiment with the number 30, but there is a gasoline tax process. The process will be described repeatedly. As described above, since the price excluding the consumption tax in units of 100 yen is 56% of the sales price without the consumption tax is the gasoline tax, and the remaining 44% is the commodity price (gasoline price). The discount rate will be 5% of the tax-excluded price. The calculation is rounded off.

  First, the price calculation unit 35 receives a purchase desired amount (for example, 5000 yen) and a discount rate (5%) from the data input unit 31, a consumption tax rate (5%) from the consumption tax rate storage unit 32, and a gasoline tax from the oil storage unit 37. (56 out of 100 yen) In response to each input (procedure S1), the tax-excluded price 2095 yen of the received purchase desired amount is calculated from the tax rate (by 5000 yen x 44/105 =) (procedure S2). The discount price of 105 yen without tax is calculated from the discount rate (by 2095 yen x 5/100 =) (step S3).

  The discount amount 105 yen of the calculation result is compared with a negligible small amount equal to or less than a predetermined value (step S4). Here, a value equal to or less than a predetermined value is set to a value that becomes “zero” when rounded off to the nearest decimal point.

  The discount amount of 105 yen is a case where the step S4 is "NO" and does not reach the predetermined value or less. The tax-excluded price when the calculated discount price of 105 yen is set as the next purchase desired amount is the next tax-excluded price 44. Calculation is performed as a circle (105 yen × 44/105 =) (step S5). Next, similarly to the above, the next discount amount of 2 yen of the next tax-excluded price is calculated from the discount rate (by 44 yen × 5/100 =) (procedure S6) and added to the previously obtained discount price of 105 yen. The total discount amount (105 yen + 2 yen =) is stored as 107 yen (step S7).

  Subsequently, it returns to procedure S4 and repeats a procedure. That is, since the discount amount 2 yen of the calculation result in step S6 is not “zero”, it is calculated again by the above steps S5 to S7, and the next discount amount “0” is calculated.

  Accordingly, since the calculation result discount amount in step S6 is “zero yen” and step S4 is “YES”, the desired purchase amount of 5000 yen input in advance is set to the purchase amount of 5000 yen including tax, and the data display Characters are displayed on the unit 36 (step S10) to inform the outside.

  Furthermore, the price calculation unit 35 calculates the purchase price of 5000 yen as the first sales price 2095 yen without tax, which is calculated in the above step S2, is the sales price without tax after the discount, and stores the total discount price 107 yen stored therein. The fixed price sales price 2202 yen before discount is calculated by addition (step S11).

  In this calculation, the price calculation unit 25 displays this fixed price sales price 2202 yen on the data display unit 26 and sells 2202 yen at the fixed price before tax discount, or the customer makes a purchase. Output to an external volume machine, for example, for weighing (step S12).

  As a result, all of the desired purchase amount of 5000 yen can be applied to the purchase amount by repeating steps S4 to S7. Accordingly, if all of the vouchers are set as purchase desired amounts, all of the face value can be used up. When a part of the voucher is set as the desired purchase price, the remaining amount obtained by subtracting the determined purchase price from the face value is notified to the data reading unit 24 as a balance, and the face value of the prepaid card 1 is updated to the balance.

  Further, in the above step S10, the display of the purchase price of 5000 yen including the tax that the trader receives payment from the customer can be confirmed together with the customer. In step S12, the price of the fixed price measured by the trader in this business and the fixed price of the quantity sold by the customer can be indicated by the fixed price sold price 2202 yen.

  Normally, at a gas station, the product price is displayed with a gasoline tax added to the product price, so it is desirable that the display to the customer is the price without the consumption tax.

  In the above description, the consumption tax has been described using the calculation formula based on the external tax. However, in the case of the internal tax, it can be calculated using the calculation formula for the internal tax.

  In step S <b> 12, the fixed price sales price output from the price calculation unit 35 is sent to the sales volume verification unit 38. The sales volume checker 38 calculates the sales volume from, for example, the fixed price per liter set in advance at the received fixed price sales price, starts the volume vending machine (step S13), and notifies the calculated sales volume.

  On the other hand, the balance updating unit 39 receives a notification of the remaining amount (procedure S14) with respect to the sales amount notified from the volume vending machine together with the notification of stoppage. When the supply of the sales amount at the fixed price sales price is completed, the remaining amount is “zero”. Accordingly, the balance is calculated from the purchase price and the face value, and the face value of the prepaid card 1 is updated via the data reading unit 34 (procedure 15). When the face value of the prepaid card 1 is used up as the purchase price, the face value becomes “zero”.

  In addition, when the tank stops due to gasoline filling in the above step S15, the remaining amount is notified from the volume vending machine, so the balance calculation is performed by calculating back the discount price from the fixed price selling price for the remaining amount by the discount rate. Then, the face value of the prepaid card 1 is updated via the data reading unit 34.

  In the description of the second embodiment, in order to clarify the difference from the first embodiment, the sales volume conversion unit 38 and the balance update unit 39 are provided independently and the respective functional operations are described. Good. Furthermore, when both are built in the price calculation unit, the calculation result can be used mutually, so that the circuit can be simplified.

  When applying discounts to products with tax deducted, the tax-excluded price is calculated using the face value of the voucher, the discounted price of the calculated tax-excluded price is calculated, and this discounted price is used as the next purchase price. Is calculated as the next tax-excluded price, the discount amount for the next tax-excluded price is determined as the next discount price, and this procedure is repeated until the discount amount is rounded off to the specified small amount, for example, after the decimal point, to become `` zero ''. This makes it possible to easily use up the face value of a cash voucher when discounting mass-sales items, so whether the cash voucher is a currency or a point card, Applicable to a single use scene or such a system.

It is explanatory drawing which showed one Embodiment of the block in the cash voucher settlement system in the case of the discount rate setting by this invention. (Example 1) It is the flowchart which showed one Embodiment of the main operation | movement procedure in FIG. (Example 1) It is explanatory drawing which showed one Embodiment of the block in a cash voucher settlement system different from FIG. (Example 2) It is the flowchart which showed one Embodiment of the main operation | movement procedure in FIG. (Example 2) It is explanatory drawing which showed an example of the block in the cash voucher settlement system at the time of the conventional discount rate setting. It is the flowchart which showed one Embodiment of the main operation | movement procedure in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Prepaid card 2, 3 Data processing device 21, 31 Data input part 22, 32 Consumption tax rate storage part 23, 33 Cash voucher storage part 24, 34 Data reading part 25, 35 Price calculation part 26, 36 Data display part 37 Oil tax etc. Storage unit 38 Sales volume conversion unit 39 Balance update unit

Claims (8)

  In the method of adjusting the par value of the voucher by setting the discount rate on the mass sales item, the purchase desired amount and the discount rate are set in advance, and the initial tax-excluded price is calculated from the purchase desired amount at a predetermined tax rate, Calculate the first discount amount from this first tax-excluded price, and if the first discount amount in the calculation result exceeds a negligible small value, the first discount amount will be used as the next purchase amount and the next tax When the discount price is calculated and the next discount amount is calculated from the next tax-excluded price and the next purchase desired amount is repeated in sequence, and the calculated discount amount reaches the negligible small value In addition, a method for paying a voucher by setting a discount rate, wherein the desired purchase price is presented as a purchase price including tax.   2. A method for adjusting a cash voucher according to claim 1 according to claim 1, wherein a discounted sales price of a mass sale item is calculated from the purchase price and the predetermined tax rate, and a sum of each discount amount obtained by the calculation. A method for adjusting a cash voucher by setting a discount rate, wherein a discount price is calculated and obtained by calculating a sum of the total discount and the selling price to obtain a fixed price sales price, and displaying it externally including a screen display.   In a system that settles the face value of a voucher when a discount rate is set for a mass-sales product, a data input unit that inputs a purchase desired amount and a discount rate, a tax rate storage unit that stores a predetermined tax rate in advance, and the voucher The received voucher storage unit, the data reading unit that accesses the stored voucher and reads and writes the record information, the purchase desired amount and the discount rate from the data input unit, and the tax rate from the tax rate storage unit, respectively received and received Calculate the first tax-excluded price from the desired purchase amount and tax rate, calculate the first discount price for this first tax-excluded price from this first tax-excluded price and the discount rate, and this initial discount amount is negligible When exceeding the small value, the next discounted price is calculated by applying the above tax rate with the first discount amount as the next purchase amount and applying the above tax rate. And a price calculation unit that calculates the discount amount sequentially and outputs the desired purchase amount as a purchase amount including tax when the discount amount of the calculation result is less than a negligible small amount. Cash voucher settlement system with discount rate setting.   4. A cash voucher settlement system according to claim 3, wherein the negligible small amount is rounded off to the nearest decimal place to be "zero".   The cash voucher settlement system according to claim 3, wherein the cash voucher is a card having a face value, and the price calculation unit uses the card to calculate an amount obtained by subtracting the purchase amount from a face amount. A cash voucher settlement system by setting a discount rate, which is characterized by updating to a new par value through the reading department.   4. The cash voucher settlement system according to claim 3, wherein the price calculation unit obtains a discounted sales price of a mass sale product from the purchase amount and the predetermined tax rate, and a discount obtained by the calculation. The total amount of each amount is calculated as the total discount amount, the sum of the total discount amount and the selling price is calculated to obtain the fixed price sales price, and this fixed price sales price is displayed externally including the screen display. Cash voucher settlement system with discount rate setting.   7. A cash voucher settlement system according to a discount rate setting according to claim 6, wherein a volume vending machine that sells and sells a volume sale product, receives the price of the fixed price from the price calculation unit, converts it into a sales volume, and notifies the volume vending machine In addition, when the purchase amount is received from the sales amount conversion unit for instructing start-up and the price calculation unit, and the remaining amount for the notified sale amount is received together with the operation stop from the volume vending machine, this remaining amount is converted into the purchase amount. A cash voucher settlement system by setting a discount rate, further comprising: a balance updating unit that applies and reversely calculates the balance and updates the balance including a screen display. 8. The cash voucher settlement system according to claim 7, wherein the cash voucher is a card, and the balance update unit instructs the data reading unit to update the balance to update the face value of the card. A cash voucher settlement system with discount rate setting.

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