At present, the interest rate of commercial loans is 6.65% for less than five years and 6.80% for more than five years. There are two repayment methods, which are calculated as follows: loan of 300,000 yuan, term of 10 year, and interest rate of 6.80%. Matching principal and interest method: the monthly repayment amount is 3452.4438+0 yuan (the same every month). The total repayment principal and interest is 4 14289. 19 yuan, of which interest 1 14289. 19 yuan. Average capital method: the repayment amount in the first month is 4,200.00 yuan (decreasing month by month, and the amount in the last month is 25 14. 17 yuan). The total repayment principal and interest is 402,850.00 yuan, of which interest is 65,438+065,438+0489,38+09 yuan. Comparing the two methods, the average capital method is less than the equal principal and interest method 1 149+09 yuan.