A machine can be purchased for $180,000 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. Year 4 $45,300 Year 5 $120,400 Year 1 Year 2 Year 3 Net income $12,100 $30,100 $69,000 Compute the machine's payback period (ignore taxes). (Round your intermediate calculations to 3 decimal places and round payback period answer to 3 decimal places.) Net Cash Flow Cumulative Cash Year Net Income Depreciation Flow 0 (180,000) (180,000) $ 12,100 $ 36,000 1 30,100 30,100 36,000 2 3 69,000 36,000 4. 45,300 36,000 0 120,400 36,000 0 5 Payback period=