Monthly payment of equal principal and interest = principal * monthly interest rate *( 1+ monthly interest rate) loan periods /[( 1+ monthly interest rate) loan periods-1]

(1) The interest rate conversion formula for RMB business is (note: common for deposits and loans):

1. daily interest rate (0/000)= annual interest rate (%)÷360= monthly interest rate (‰)÷30.

2. Monthly interest rate (‰) = annual interest rate (%)÷ 12

(two) banks can use the product interest method and the transaction interest method to calculate interest.

1. Accumulate the account balance daily according to the actual number of days, and multiply the accumulated product by the daily interest rate to calculate the interest. The interest-bearing formula is:

Interest = cumulative interest-bearing product × daily interest rate, where cumulative interest-bearing product = total daily balance.

2. Transaction-by-transaction interest calculation method calculates interest one by one according to the preset interest calculation formula: interest = principal × interest rate × loan term.