| 摘要 |
Disclosed are an electronic payment method, device and system on the basis of price adjustment, relating to the technical field of the Internet. A series of problems caused by one-way fund flow and manual price adjustment can be solved. The main technical solution of the present invention comprises: calculating the current accumulative sales volume of the commodity after a commodity price payment instruction sent by a user-side client is received and corresponding amount transfer is completed; querying a price and sales volume mapping table to acquire the revised price corresponding to the accumulative sales volume, the price and sales volume mapping table being used for representing the negative correlation between the price and the sales volume; modifying the commodity page of the commodity and modifying the current price in the commodity page into the revised price; calculating the difference between the current price and the revised price and acquiring the compensation price difference; sending an amount return instrument to a payment platform and instructing the payment platform to return the compensation price difference to all user-side clients which have paid the commodity price. The present invention is applied to price difference return during online shopping. |
