Problem 4-4 Calculating Interest Rates [LO 3] Solve for the unknown interest rate in each of the following: (Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.) Present Value Years Interest Rate Future Value $ 795 6 % $ 1,541 985 7 1,878 23,000 18 149,832 78,300 21 328,815