Could i get assistance with this question please?

A machine can be purchased for $291,000 and used for ve years, yielding the following net incomes. In projecting net incomes, double-declining depreciation is applied using a five-year life and a zero salvage value. Yea: 1 Year 2 Year 3 Year 4 Yam: 5 Net. income $13,500 $45,000 $76,000 $51,500 5105,4100 Compute the machine's payback period [ignore taxes}. {Round payback period answer to 3 decimal places.) 51.509 105.001]