A company is considering replacing a machine that was purchased five years ago for $250000$ and produces an annual real cash flow of $80000.$ It has no salvage value but is expected to last another five years. The company can replace the machine with a new one that produces an annual cash flow of $72500$ either now or at the end of five years. When should it replace the machine?Assume that the real opportunity cost of capital is $12\%.$NowAt the end of five years