Legal analysis: the principal of 20,000 yuan is borrowed from the bank 1 year, and it will be repaid monthly. The benchmark interest rate is 6%. Matching principal and interest repayment method: total interest: 655.94.

Legal basis: Interim Measures for the Administration of Personal Loans Article 40 The lender shall recover the loan principal and interest in accordance with the loan contract.

For loans that are not repaid in accordance with the loan contract, the lender shall take measures such as collection or agreement restructuring.