C Corporation is investigating automating a process by purchasing a machine for $795,600 that would have a 9 year useful life and no salvage value. By automating the process, the company would save $134,000 per year in cash operating costs. The new machine would replace some old equipment that would be sold for scrap now, yielding $21,400. The annual depreciation on the new machine would be $88,400. The simple rate of return on the investment is closest to (ignore income taxes.)