So the interest after one year is 2.6* 10? *4%*( 1-5%)
That is, the sum of principal and interest is: 2.6* 10? + 2.6* 10? *4%*( 1-5%)
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The formula of the above situation is as follows:
Interest = principal × annual interest rate (percentage) × deposit time
If the interest tax is X (1-5%)
Total principal and interest = principal+interest