Joetz Corporation has gathered the following data on a proposed investment project (Ignore income taxes.): Investment required in equipment $ 36,000 Annual cash inflows $ 8,400 Salvage value of equipment $ 0 Life of the investment 15 years Required rate of return 10% The company uses straight-line depreciation on all equipment. Assume cash flows occur uniformly throughout a year except for the initial investment. The simple rate of return for the investment (rounded to the nearest tenth of a percent) is: