The interest is 4 miles 3, which should be the monthly interest rate 4.3% per thousand, the monthly interest rate is 0.43, 80,000, 10 years (120 months), the monthly repayment amount:

80000*0.43 *(1 0.43)^120/[(1 0.43)^120-1]=854.79

The interest for equal repayments varies every month, with more at the beginning and less at the end. The average interest is about 190 yuan per month.

Explanation: ^120 is 120th power