John has an investment opportunity that promises to pay him $12,979 in four years. Suppose the opportunity requires John to invest $9,540 today. (FV of S1, PV of S1, FVA of S1, PVA of S1, FVAD of S1 and PVAD OR SO (Use appropriate factor(s) from the tables provided.) What is the interest rate John would earn on this investment? (Round your Interest rate to the nearest whole perceritage.) Present Value Future Value + 5 6 7 8 . 9 ER