Also find the After Tax Cash Flows(ATCF) and Net present value(NPV) and Rate of Return (IRR) for each method

11-31 A small used delivery van can be purchased for $20,000. At the end of its useful life (8 years), the van can be sold for $3000. Determine the PW of the depreciation schedule based on 15% interest using: (a) Straight-line depreciation (b) Double declining balance depreciation (c) 100% bonus depreciation (d) MACRS depreciation Year BTCF BTCF Purchase benefits- & salvage expenses -20000 5000 2 5000 3 5000 4 5000 5 5000 6 TL 5000 7 5000 8 3000 5000