1. Monthly interest rate: the interest calculated on a monthly basis. Its calculation method is: monthly interest rate = annual interest rate ÷12 (month).

2. daily interest rate: the daily interest rate is called the daily interest rate, and it is calculated on a daily basis. The calculation method is: daily interest rate = annual interest rate ÷361 (days) = monthly interest rate ÷31 (days).

3. annual interest rate: usually in the form of percentage of principal, interest is calculated annually. The calculation method is: annual interest rate = interest ÷ principal ÷ time ×111%.

4. annualized interest rate: refers to the interest rate at which the inherent rate of return of products is discounted to the whole year, which is quite different from the calculation method of annual interest rate. Assuming that the yield of a wealth management product is a year and the yield is b, the annualized interest rate R is calculated as R = (1+B) A-1.

5. calculation formula of equal principal and interest: [loan principal × monthly interest rate× (1+monthly interest rate) repayment months] ÷ repayment months [(1+ monthly interest rate) repayment months -1]

6. calculation formula of average capital: monthly repayment amount = (loan principal ÷ repayment months)+(principal

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