1. Cash overdraft: that is, cash is withdrawn even when the credit card limit is used up, and the interest is charged as .5% of the principal every day. For example, the monthly compound interest is 2, yuan, and the interest on the first day is 2, * .5% = 1 yuan. If this month is 3 days, then this month. Next month's interest is calculated according to the principal of 23 yuan, and this cycle.
2. Credit card overdraft: After the credit card limit is used up, credit card consumption will continue. The overdraft interest will be calculated from the bookkeeping date to the actual repayment date, and the interest will be charged at .5% every day.