ws. Round all figures within your computations to the nearest thousand dollars. 2. Auburn Concrete Inc. is considering the purchase of a new concrete mixer to replace an ineficient older model that is completely worn out. If purchased the new machine will cost $90,000 and expected to generate savings of $40.000 per vear for five years at the end of which it will be sold for $20,000. The mixer will be depreciated to a zero salvage value over three years using the straight line method. Develop a five-year cash flow estimate for the proposal. Auburn's marginal tax 30%. Work to the nearest thousand dollars