The annualized interest rate is the interest rate discounted to the whole year through the inherent rate of return of products. Suppose that the income period of a wealth management product is one year, the rate of return is B, and the annualized interest rate R is the difference between the sum of 1 and b and the sum of powers of A 1, that is, the power of (1+b) minus 1.

Annual interest. The annual interest rate is expressed as a percentage of the principal. For example, if the deposit is 100 yuan and the bank promises to pay the annual interest rate of 4.2%, then the bank will pay 4.2 yuan interest in the coming year.

The calculation formula is 100×4.2%=4.2 yuan, and the formula is: interest rate = interest ÷ principal ÷ time×100%. Interest = principal × interest rate× time = 100×4.2%=4.2 yuan, and the final withdrawal 100+4.2= 104.2 yuan.

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