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what is the formula to find rate in compound interest. Lets look at an example. A lesson on how to find the Interest Rate r in a question where youre told the Initial Investment period of time and the investments final valueIt is r.
Interest Compound Interest Growth Calculated By Rate Frequency Intrest Rate Interesting Things Compound Interest from www.pinterest.com
In simple in it also written as Simple Interest rate PRT100. The compound interest formula is P 1in - P where P is the principal i is the annual interest rate and n is the number of periods. Problem Suppose 5000 dollars is deposited in an account that earns compound interest that is done annually.
Number of times the money is compounded per year and the number of years the money is left in the bank.
A P 1rnnt. Get your calculator and check to see if youre right. When the amount of interest the principal and the time period are known you can use the derived formula from the simple interest formula to determine the rate as follows. Following is the formula for calculating compound interest when time period is specified in years and interest rate in per annum.
