Marshall-Miller & Company is considering the purchase of a new machine for $50,000, installed. The machine has a tax life of 5 years, and it can be depreciated according to the depreciation rates below. The firm expects to operate the machine for 4 years and then to sell it for $12,500. If the marginal tax rate is 40%, what will the after-tax salvage value be when the machine is sold at the end of Year 4?

Please show formula and how you got to the answer. Thanks!