Answer:
A rate is a value that serves as a reference measure to calculate a certain mathematical operation, such as a financial interest, a measure of economic growth or the frequency of a certain statistical event.
Thus, in all cases, the rates are multiplied or divided by the initial value, from which the final result of the mathematical operation is obtained. For example, to apply an interest rate of 10%, said value (10/100) is multiplied to the initial value (X x 1.10), from which the final value of said operation is obtained.