A machine can be purchased for $90,000 and used for five years, yielding the following net incomes. In projecting net incomes, straight-line depreciation is applied, using a five-year life and a zero salvage value. Net income 6,000 $15,000 $36,000 $22,500 60,000 Compute the machine's payback period (ignore taxes) (Round payback period answer to 4 decimal places.) Year Net Income Depreciation Net Cash Flow Cumulative Cash Flow (90,000)$ (90,000) 6,000 15,000 36,000 22,500 60,000 Payback period