Need some help with it all, not sure if what i put is correct

BAK Corp. is considering purchasing one of two new diagnostic machines. Either machine would make it possible for the company to bid on jobs that it currently isn't equipped to do. Estimates regarding each machine are provided here: Machine A Machine B Original cost 75,500 180,000 Estimated Life 8 years 8 years Salvage Value -0- Estimated Annual cash IN-flows $20,000 $40,000 Estimated Annual Cash OUT-flows $5,000 $10,000 -0- Instructions Calculate the net present value and profitability index of each machine. (Assume a 9% discount rate). Which machine should be purchased? Machine A Cash Flows 9% Discount Present Value Factor 7522.29 Present value of net annual cash flows LESS: Capital Investment Net Present Value Profitability Index (A) = 1.10 Present Value Cash Flows 9% Discount Factor 13955.43 Machine B Present value of net annual cash flows LESS: Capital Investment Net Present Value Profitability Index (B) = 0.92 Note: Answer this in complete sentence(s) using good grammar ... AS IF the BIG bosses of your company will review it. (Do NOT write like you and moi) talk). Your recommendation AND reasons