Discount first According to the query of E-Trade Technology, the calculation method of the store system is based on the proportional or full reduction rule, and the order is to discount the whole order first, then the coupon, then the membership card, and finally the points are cashed. Sanfu Department Store was established in1992165438+10/0/9. Rongxin Department Store, the predecessor of Sanfu Department Store, was established, and Sanfu Department Store Co., Ltd. was formally established on June 1994.