(14-81) A small research device can be purchased for $10,000 and depreciated by 5-year MACRS depreciation. The net benefits from the device, before deducting depreciation, are $2500 at the end of the first year and increasing $1250 per year after that, until the device is hauled to the junkyard at the end of 10 years During the 10-year period there will be an inflation rate fof 7%. The corporation has a 28% combined federal and state income tax rate. If it requires a real 15% after- tax rate of return on its investment, should the device be purchased