what is the net present value of the investment

Baby Pro manufactures baby furniture, clothing, stroters, and accessories, In the current year the company plans on purthiasing a new machine to improve the cualify and afficiency of production Baby Pro has prepared estimates of future cash fows over the following four years, at which point it wil sel the machine for 512 ,.500. The compary focuses on tax minmization and calcilated depreciation over the four years using the straight-ine method, a useful life of four years, and a residual value of $0