Calculated based on a 30-day month, the interest is 75 yuan.

Interest on Industrial Bank credit card debt is charged at 50,000 per day. The credit card debt is 5,000 yuan per month (30 days), and the interest calculation is: 5000*0.0005*30=75 yuan.

It is recommended that cardholders pay off their balances as soon as possible, otherwise they will not only have to repay the principal, but also pay additional interest. Overdue credit cards will also have a certain impact on the cardholder's credit report.