C.D. Rom paid an insurance company $47,500 for an annuity that will pay $6,800 annually for 20 years. To calculate the rate of return needed by the insurance company to make the annual payments, the present value, future value, coupon amount, and number of periods were input into the financial calculator. The required rate of return was calculated to be 13.09%, meaning the insurance company must invest at a 13.09% rate of return.