Patent ID: 8630912

Claim:
A method of managing retail sales of a product, comprising: storing retail sales data regarding the product at a server, wherein the retail sales data comprises previous retail sales data of the product and current retail sales data of the product; updating a current value of a price of the product, dynamically by a processor at the server, in accordance with a dependency element and price-setting rules associated with price change trend information corresponding to the product in the retail sales data, wherein the current value of the price is updated based on a sales characteristic representing total sales of the product independently from information corresponding to a current user's identity, and the price of the product is within a predetermined price range; receiving an information request about the product at the server from a client, wherein the server and the client communicate with each other via a communication network; providing information regarding the product and the current value of the price to the client from the server upon receiving the information request; transmitting, periodically by the server to the client, an updated current value of the price and the price change trend information prior to receiving a purchase request; and receiving the purchase request for the product from the client at the server after the client has received the information regarding the product, wherein the purchase request is accepted upon being received before a predetermined time has elapsed, and when the product is to be purchased after the predetermined time has elapsed since product information was furnished, receiving the purchase request for the product from the client at the server, and an updated current value of the price is transmitted to the client from the server.