Matching principal and interest method: loan principal: 880,000 yuan, assuming annual interest rate: 4.4 10%, loan term: 20 years, monthly repayment of principal and interest: 5,524.65 yuan, total repayment of principal and interest: 65,438+032,596,5438+06 yuan, and total interest payable: 4,000 yuan.

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Average capital method: loan principal: 880,000 yuan; loan term: 20; assumed annual interest rate: 4.410%; Total principal and interest payable: 1269697, total interest: 389697;