Patterson Corp. is considering the purchase of a new piece of equipment, which would have an initial cost of $539,000, a 7-year life, and 5150.000 salvage value. The increase in cash flow each year of the equipment's life would be as follows Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Year 2 $112,000 $104,000 $102,000 $91,000 $ 88,000 $ 83,000 $ 77,600 What is the payback period