Payback Period and NPV: Taxes and Straight-Line Depreciation Assume that United Technologies is evaluating a proposal to change the company's manual design system to a computer-aided design (CAD) system. The proposed system is expected to save 10,000 design hours per year, an operating cost savings of $50 per hour. The annual cash expenditures of operating the CAD system are estimated to be $250,000. The CAD system requires an initial investment of $500,000. The estimated life of this system is five years with no salvage value. The tax rate is 36 percent, and United Technologies uses straight-line depreciation for tax purposes. United Technologies has a cost of capital of 20 percent. (a) Compute the annual after-tax cash flows related to the CAD project. $ (b) Compute each of the following for the project: 1. Payback period. (Round your answer to two decimal places.) years 2. Net present value. (Round answer to the nearest whole number.)