22. CAM Co. is evaluating a project requiring a capital expenditure of $806,250. The project has an estimated life of four years and no salvage value. The estimated net income and net cash flow from the project are as follows: Year Net Income Net Cash Flow 1 $ 75,000 $285,000 2 102,000 290,000 3 109,500 190,000 4 36,000 125,000 $322,500 $890,000 The company's minimum desired rate of return is 12%. The present value of $1 at compound interest of 12% for 1, 2, 3, and 4 years is .893, .797, .712, and .636, respectively. Determine:

(a) the average rate of return on investment, including the effect of depreciation on the investment, and (b) the net present value.