Ramson Corporation is considering purchasing a machine that would cost $454.140 and have a useful life of years. The machine would reduce cash operating costs by $84 100 per year. The machine would have a salvage value of $107130 at the end of the project ignore income taxes Required: a Compute the payback period for the machine (Round your answer to 2 decimal places.) b. Compute the simple rate of return for the machine (Round your intermediate calculations to nearest whole dollar and your final answer to 2 decimal places.) a years Payback period Simple rate of return 9