1. Commercial loan of 690,000 yuan, 20 years. According to the latest benchmark interest rate of 5. 15 on June 28th, 2005, the repayment method of principal and interest is equal. The monthly payment is 46 1 1.06 yuan, the total interest is 4 16655.35 yuan, and the total repayment amount is 16544.

Second, if there is a provident fund, you can use the provident fund loan, and the interest will be much less.

Under the same conditions, the monthly contribution of the provident fund is 39 13.65 yuan, and the total interest is 249,276.6438+08 yuan.