please explain the calculations

1. You are considering an investment in two projects, A and B. Both projects will cost $115,000, and the projected cash flows are as follows: Year Project A Project B 1 $ 7,188 $ 51,750 2 21,562 38,812 3 40,250 28,750 4 50,315 21,563 5 57,500 14,375 Assuming that the WACC is 9.4%, calculate the payback period, discounted payback period, NPV. PI, IRR, and MIRR. If the projects are mutually exclusive, which project should be Jelected? a D B Project A Project B (115,000) (115,000) 7,188 51.750 21,562 38.812 40,250 28,750 50,315 21,563 57,500 14,375 9.4% A 1 Year 2 0 3 1 4 2 5 3 6 4 7 5 8 9 WACC 10 11 Payback Period 12 Discounted Payback 13 NPV 14 Profitability Index 15 IRR 16 17 18 19 20