| 摘要 |
PROBLEM TO BE SOLVED: To provide a sales system capable of providing a discount service as much as possible while ensuring a fixed profit by returning a margin, when generated after settlement in the sales transaction of a commodity, by payback. SOLUTION: In this payback type margin return sales system having a seller's computer system 101 connected to a customer's computer system 117 through a network 124, a seller 107 preliminarily displays the payback of margin to a customer 123 by a sales information reporting function 112, receives an order from the customer 123 by use of an order receiving function 113, and performs the settlement by a settlement function 114. The seller 107 calculates a payback amount by use of a payback amount calculating function 109, and pays back the margin to the customer 123 by use of a payback amount reporting function 115 and a payback amount paying function 116. |
