Patent ID: 8521604

Claim:
A method of accessing product retail sales information about a product, comprising: transmitting an information request regarding the product from a client to a server storing the product retail sales information, wherein the client and the server communicate with each other via a communication network; receiving information concerning the product at the client from the server; receiving a dynamically-set price of the product at the client from the server, wherein the dynamically-set price is based on a dependency element that corresponds to a sales characteristic representing total sales of the product; receiving price change trend information at the client from the server, wherein the price change trend information indicates a condition triggering a change in the dynamically-set price, an amount of the change, and an elapsed time before adjusting the dynamically-set price to reflect the amount of the change; displaying the information concerning the product, the dynamically-set price, the amount of the change, and the elapsed time before the dynamically-set price will be adjusted on a display at the client; transmitting a purchase request for the product from the client to the server after the client has received the information concerning the product; receiving, periodically at the client from the server, an updated dynamically-set price of the product; and displaying the dynamically-set updated price on the display upon transmitting the purchase request after a predetermined time has elapsed.