Let me give you a simple example for your reference. Take the mentioned loan of 400,000 yuan as an example, assuming that all loans are commercial loans, the repayment period is 240 months (20 years), according to the current interest rate (commercial loan interest rate: 6.600%). The following data can be obtained:
Total loan: 400,000 yuan;
Total repayment: about 72. 14 1 (ten thousand yuan);
Pay interest: about 32. 14 1 (ten thousand yuan);
Average monthly repayment: about 3005.89 yuan.
According to your own situation, you can choose loan types or combine loans to determine the appropriate repayment period (technically called "mortgage period") to achieve the purpose of controlling and reducing interest payments.