If the credit card rate is adjusted to 150+3, it means that the credit card rate is 1.5%, and 3 yuan/transaction handling fee needs to be paid additionally.

For example, if you swipe your card 10000 yuan, you need to pay the handling fee = 10000* 1.5%+3 yuan = 153 yuan. If the credit card is 100 yuan, the handling fee is 100 * 1.5%.

According to the industry, many payment companies have been fined at sky-high prices, and in order to recover their blood, the cost of users has been increased. Many payment companies have indicated that they will increase the handling fee to 1%+3, that is, the handling fee for swiping 10,000 yuan is 100 yuan, and no matter how much each transaction is, there is a 3 yuan second arrival fee for each transaction, that is, 103 yuan.