To provide a credit card credit sale system for attaining the business promotion of a specified store and a card issuing bank by recommending a member to use a credit card, and a calculation method therefor.
The system comprises a determination means for determining whether or not a generated credit card credit sales is in the specified store; a calculation means for deducing the amount of a predetermined ratio from the amount of transaction, when the determination means determines that the credit card credit sales is in the specified store, and returning the deduced amount to the member; a database having a plurality of nodes for storing relevant data of members, wherein the present positions of the members are divided to a plurality of ranks, and a difference in level of the ranks is present between the nodes; and a distribution means for distributing the deduced amount to the member who performed the credit card credit sales and a member represented by a node located in an upper rank from the node representing the member in different percentages, respectively.
Takaaki Yasumura
Natsuki Morishita