1. Matching principal and interest repayment method:

The total loan amount is 400,000 yuan.

Number of repayment months: 120 months

The monthly repayment is 447 1.0 1 yuan.

The total interest paid is136,521.26 yuan.

The total principal and interest is 536,526.5438+0.26 yuan.

2. Repayment method of equal principal:

The total loan amount is 400,000 yuan.

Number of repayment months: 120 months

The repayment in the first month is 5383.33 yuan.

Decreasing monthly: 17.08 yuan.

The total interest paid is124,025.00 yuan.

The total principal and interest is 524,025.00 yuan.