The management of nebraska corporation is considering the purchase of a new machine costing $490,000. the company's desired rate of return is 10%. the present value factors for $1 at compound interest of 10% for 1 through 5 years are 0.909, 0.826, 0.751, 0.683, and 0.621, respectively. in addition to the foregoing information, use the following data in determining the acceptability: year income from operations net cash flow 1 $100,000 $180,000 2 40,000 120,000 3 40,000 100,000 4 10,000 90,000 5 10,000 120,000 the average rate of return for this investment is