Crowl Corporation is investigating automating a process by purchasing a machine for $798,300 that would have a 9 year useful life and no salvage value. By automating the process, the company would save $135,500 per year in cash operating costs. The new machine would replace some old equipment that would be sold for scrap now, yielding $21,700. The annual depreciation on the new machine would be $88,700. The simple rate of return on the investment is closest to (Ignore income taxes.):