if you could use excel that would help greatly

Problem 2: The Sumitomo Chemical Corporation is considering replacing a 5 -year-old machine that originally cost $50,000 and can be sold for $60,000. This machine is totally depreciated. The replacement machine would cost $125,000 and have a 5-year expected life over which it would be depreciated down using the straight-line method and have no salvage value at the end of five years. The new machine would produce savings before depreciation and taxes of $45,000 per year. Assuming a 34 percent marginal tax fate and a required retum of 10%, calculate The intemal rote of return and the net present value