It is the full penalty interest calculated from the day you spend, because your second repayment has passed the grace period and belongs to the minimum repayment amount, and the rest will bear interest.

All consumption in the current period starts to bear interest from the bookkeeping date (usually the day after consumption), and the daily interest rate is five ten thousandths until you pay it off in full.

Extended data:

Revolving interest is the interest generated when you can't repay in full. The interest-bearing days are from the bookkeeping date of each account to the repayment date of the account, and the daily interest rate is five ten thousandths.

If you use the cash advance function of the credit card, it will also generate cyclic interest. You need to charge interest at the rate of five ten thousandths of a day from the date of withdrawal to the date of settlement, and compound interest on a monthly basis until it is paid off.

For example, a cardholder's billing date is the 7th day of each month, and he spends 2000 yuan by swiping his card on April 1 day, and this consumption is recorded on April 2nd. On April 7th, the bill will show that the "payable amount in this period" is 2000 yuan, and the "minimum repayment amount" is 200 yuan.

If the cardholder only repays 200 yuan on the repayment due date on April 25th, the interest payable by that date will be shown on the bill on May 7th, that is, the interest of the revolving credit principal of 2,000 yuan for 23 days and the interest of the remaining principal after repayment 1800 yuan 13 days.

The specific calculation is: 2000 yuan ×0.05%×23 days (April 2-April 24)+1.800 yuan ×0.05%× 13 days (April 25-May 7) =23 yuan+1.7 yuan =

References:

What does China Merchants Bank official website-China Merchants Bank credit card revolving interest mean?