The interest is 57,865,438+0.60 yuan. The monthly interest rate of 0.99 means that the monthly interest of the principal of 65,438+000 yuan is 0.99 yuan. The bank loan interest of 1 year is calculated as 365 days, so the monthly interest rate of 0.99 divided by 30 days is converted into 0.033 multiplied by 365 days multiplied by the principal of 48,000 to get interest.