40.67 yuan. According to relevant public information, the annual interest rate is 4.88%, the loan term is 24 months, and the loan is 1 0,000. The calculation rule of monthly interest rate is 4.88% times 24 months times 1 divided by 12 months, which is equal to 40.67 yuan. Interest is the use fee of money in a certain period of time, which refers to the reward that the holder of money gets from the borrower for lending money or monetary capital.