Swift Company purchased a machine on January 1, 2012, for $6230,000. At the state of acquisition, the machine had an estimated useful life of six years with a salvage of $20,000. The machine is being depreciated on a straight-line basis. On January 1, 2015, Swift determined, as a result of additional information, that the machine had an estimated useful life of eight years from the date of acquisition with no salvage. What is the amount of depreciation expense on this machine that should be charge in Swift's income statement for the year ended December 31, 2015? $64,000 $75,000 $120,000 $150,000