Cost of new computers $25,400 Salvage value of new computers at end of useful life $2,400 Life of new computers (years) 5 Market value of old computers today (equal to book value) $1,800 Annual software update cost (necessary for all computers, old or new) $3,100 Annual operating cash inflows from efficiency gains and increased sales due to new computers $9,400 Minimum required rate of return 6% Applicable tax rate 23% Determine if this investment makes sound financial sense for this company by completing the following. Calculate the NPV of this investment. (Round present value factor calculations to 5 decimal places, e.g. 1.25124 and final answer to 2 decimal places e.g. 5,125.36. Enter negative amounts using either a negative sign preceding the number e.g. -45 or parentheses e.g. (45).) NPV $............... Based on this NPV amount, is the IRR higher or lower than 6%? Determine the simple payback period using (1) before-tax cash flows and (2) after-tax cash flows. (Round answers to 2 decimal places, e.g. 15.25.) Simple payback period - Before-Tax Cash Flows and After-Tax Cash Flows? Determine the discounted payback period using after-tax cash flows. (Round present value factor calculations to 5 decimal places, e.g. 1.25124 and final.