About 150 yuan. According to the regulations of the People's Bank of China, the interest rate for credit card overdrafts is 50,000 per day, with compound interest calculated on a monthly basis. Therefore, the interest rate for a credit card of 10,000 yuan per month is: 10,000 * 0.0005 * 30 = 150 yuan. Credit Card refers to various media that record cardholder account information and have all or part of the functions of bank credit limit, consumer payment, credit loan, transfer settlement, cash deposit and withdrawal, etc. In 1951, the first credit card was issued by Franklin National Bank in the United States, followed by commercial banks or financial institutions in other countries. A credit card is generally a plastic or metal card with a length of 85.60 mm, a width of 53.98 mm, and a thickness of 0.76 mm. It is issued to the cardholder by the bank or credit card company based on the user's creditworthiness and financial resources. The cardholder does not need to pay cash when using the credit card to make purchases. Make repayments later.