Minimum repayment by credit card, daily interest is charged at 0.05%, current interest = 10000*0.05%=5 yuan, and monthly interest is 150 yuan.

Minimum repayment amount is a repayment method provided by banks to credit card customers. Generally, the minimum repayment amount of the customer is about 10% of the total bill when the customer's capital turnover is not smooth or the customer is not well off. For example, the bill to be repaid is 3,000 yuan, and the minimum repayment amount is around 300 yuan. Plus other expenses, it is estimated that the actual minimum repayment amount is more than 300 yuan, and the interest will be calculated at the daily interest rate of five ten thousandths. The interest is compounded monthly until the customer pays off all the debts. Therefore, the longer it takes the customer to repay the credit card with the minimum repayment amount, the higher the accumulated interest will be. Therefore, the cost for customers to use credit cards is higher than the full monthly repayment.