7. On March 1, 2017, Effy Company purchases for $600,000 a machine that Efay estimates will have a useful life of 50,000 machine hours and a salvage value of for $15,000. In Year 1, Effy uses the machine for 11,100 hours; in Year 2, 8,600 hours; in Year 3, 9,100 hours; in Year 4, 12,000 hours; and in Year 5, 13,600. They use UOP depreciation. Compute the depreciation for the entire useful life. Please show work.