Being joint possible in each purchaser terminal of the group of purchasers who purchase the commodity where the bonus is delivered according to the bonus estimate server and bonus

摘要

PROBLEM TO BE SOLVED: To facilitate adjustment of an application quantity when a plurality of purchasers jointly order, and to efficiently secure rewards and discount to evenly distribute them, in relation to an application quantity adjustment server that handles a custom wherein rewards based on the application quantities or benefits depending on net rates are returned to the purchasers.;SOLUTION: A "reward by a book store application quantity" which is a reward when the "book store application quantity" is applied, a "reward estimation quantity for a bookstore" obtained by multiplying, by a "bookstore application quantity", a reward level for a bookstore set by subtracting an intermediary fee from a "reward level by the total application quantity" which is a total of respective bookstore application quantities, and an "expected reward estimate for a book store" obtained by multiplying, by a "bookstore expected application quantity", a markedly advantageous "next reward level for a bookstore" are displayed on a reward estimation screen.;COPYRIGHT: (C)2004,JPO&NCIPI