it would also help to have the work shown, having trouble with formulas without using excel. thanks!!

David's I ractor Supplies, Inc. For the following two projects, determine the @ Payback Period cs Discounted Payback @ Net Present Value Q2 Profitability Index (Benefit-Cost Ratio) Internal Rate of Return \& Modified Internal Rate of Return B Note that Project A is a Highest risk project while Project B is of Average risk. cs Assume your firm is in the 40% tax bracket, and that your cost of capital is 13%. c8 The firm adjusts its projects with risk adjusted discount rates to account for project risks. & The firm's project risk schedule is applied as follows