Use Exhibit 12B.1 and Exhibit 12B.2. Each of the following scenarios is independent. Assume that all cash flows are after-tax cash flows. a. Campbell Manufacturing is considering the purchase of a new welding system. The cash benefits will be $480,000 per year. The system costs $2,700,000 and will last 10 years. Required: 1. Compute the NPV for Campbell Manufacturing, assuming a discount rate of 12%. If required, round all present value calculations to the nearest dollar. Should the company buy the new welding system? Should she invest? ! The shop be purchased. This reveals that the decision to accept or reject in this case is affected by differences in estimated 3. What was the required investment for Barker Company's project? Round to the nearest dollar. If required, round all present value calculations to the nearest dollar. Exhibit 12B.1 Present Value of a Sinqle Amount* Exhibit 12B.2 Present Value of an Annuity*