Archer bikes is considering a machine. The cost is $77500.$ The salvage value is $7750.$ And the useful years is $5.$Archer requires a $12\%$ return on investments. The first year it is expected to have a cash flow of $18000,$ the second year it is expected to have cash flows of $14000,$ the third year it is expected to have cash flows of $10000,$ fourth year $7000$ and the fifth is $4000.$ What is the payback period for each machine? What is the annual rate of return for each machine? What is the net present value?