Net Present Value Versus Internal Rate of Return For discount factors use Exhibit 12B1 and Exhibit 12B2. Skiba Company is thinking about two different modifications to its current manufacturing process. The after-tax cash flows associated the two investments follow: Skiba's cost of capital is 14%. Required: 1. Compute the NPV and the IRR for each investment. Round present value calculations and your final NPV answers to the nearest dollar. Round IRR answers to the nearest whole percent. rn=A/(1+1)n Exhibit 12B.2 Present Value of an Annuity*