Price information presentation system, price information presentation control device, price information presentation method, price information presentation control program and computer readable recording medium recording the same program

摘要

When the purchase price purchases at the other store vis-a-vis the customer who did shopping, compared to, it is the price information presentation system which improves the degree of satisfaction of the customer by informing about the fact that it is cheap easily. The store the other stores price database (40) referring to the other stores price database which records the selling price of the commodity at least in one which differs other store beforehand (40) with, the information regarding the purchase of the commodity by the customer the input possible purchase information input section (10) with, this purchase information input section (10) on the basis of the information which is input, concerning the commodity which is identical with the commodity which the customer purchases the other stores price information acquisition section which acquires the selling price in the other store (31) with, selling price information and other things of the said commodity which the customer purchasesThe presentation section which presents the value differential which was calculated the value differential calculation section which calculates the value differential of the selling price in the store (32) with, this value differential calculation section (32) by vis-a-vis the customer (11,13) with having, it constitutes.