General retail category is 1%, with no upper limit;

Wholesale merchants 0.5%, some industries 20 capped, some 60 capped, and some not capped.

After installing pos, banks need to charge merchants a discount rate regardless of whether customers use debit cards or credit cards.

Cardholders cannot enjoy the merchant discount rate.

Specifically, it should be based on the local discount rate standard of Shandong UnionPay.