please show how to solve in EXCEL

4. Suppose a project has NINV of $650,000. Of this, only $460,000 is depreciable and can be depreciated straight-line over 10 years. After 7 years of this, however, you sell a machine that was part of that depreciable asset group for $40,000. At the time of sell, the machine still had $15,000 of remaining book value. If your tax rate is 21%, what is the tax ramification of the machine sell? a. A tax savings of 21,840 b. A tax bill of $20,580 c. A tax bill of $5,250 d. A tax savings of $4,380