1. Matching principal and interest refers to a repayment method of housing loan, that is, the loan with the same amount (including principal and interest) is repaid every month during the repayment period. The calculation formula of monthly repayment amount is as follows:

[loan principal × monthly interest rate ×( 1+ monthly interest rate) repayment months]/[(1+monthly interest rate) repayment months-1].

2. Average capital refers to a loan repayment method, that is, the total loan is divided into equal parts during the repayment period, and the same amount of principal and interest generated by the remaining loans in the current month are repaid every month. In this way, because the monthly repayment amount is fixed and the interest is less and less, the borrower is under great repayment pressure at first, but as time goes on, the monthly repayment amount is less and less.

Calculation formula of average capital loan:

Monthly repayment amount = (loan principal/repayment months)+(principal-accumulated amount of repaid principal) × monthly interest rate.

The total amount is 5,000 yuan, and the loan term is 1 year. The current loan interest rate of 1 year is 4.6%.

Matching principal and interest method: monthly repayment is 427. 12, total interest paid is 125.46, and total principal and interest is 5125.46;

Average capital method: the repayment in the first month is 435.83, with a monthly decrease of 65,438+0.60, total interest of 65,438+024.58 and total principal and interest of 5,654,38+024.58.