First of all, you should know the minimum repayment amount of a credit card. The minimum repayment amount of a credit card = 65438+ 00% of the credit card bill in the current month+all outstanding installment transactions in the account+the unpaid part of the minimum repayment amount in the previous period+all the money used beyond the credit limit of the account+repayment fee of the minimum repayment amount+interest.

If it is not paid off in full within the interest-free period, even if it has been paid off, it will be counted as interest. In other words, there is no repayment period for the remaining unpaid amount after selecting the minimum repayment amount. As long as there is no full repayment, interest will always be charged. So if your credit card has always been the lowest repayment, it will be more and more and bigger.