please show all calcution in excel

P11-11 Calculating initial investment Vastine Medical, Inc., is considering replacing its ex- isting computer system, which was LG 4 3 purchased 2 years ago at a cost of $325,000. The system can be sold today for $200,000, It is being depreciated using MACRS and a 5-year recovery period (see Table 4.2, page 120.) A new computer system will cost purchase and install. Replacement of the computer system would not $500,000 to involve any change in net working capital. Assume a 40% tax rate a. Calculate the book value of the existing computer system. b. Calculate the after-tax proceeds of its sale for $200,000. c. Calculate the initial investment associated with the replacement project