Matching principal and interest: the total loan interest is 65,438+0,092,739.43 yuan, the total principal and interest is 2,292,739.43 yuan, and the monthly payment is 6,368.72 yuan.

Average capital: the total loan interest is 884,450.00 yuan, and the total principal and interest is 2,084,450.00 yuan. The loan in the first month is 8,233.33 yuan, with a monthly decrease of 13.6 1 yuan.

2. Provident fund loan:1.20,000. How much is the loan for 30 years?

Matching principal and interest: the total loan interest is 68,0091.30 yuan, the total principal and interest is1.88,0091.30 yuan, and the monthly payment is 5,222.48 yuan.

Average capital: the total loan interest is 586,625.00 yuan, and the total principal and interest is 65,438+0,786,625.00 yuan. The first month's loan was 6583.33 yuan, a decrease of 9.03 yuan per month.