A factory machine was purchased for $375,000 on July 1, 2014. It was estima that it would have a $75,000 salvage value at the end of its 5-year useful life. was also estimated that the machine would be run 40,000 hours in the 5 yea The company ran the machine for 4,000 actual hours in 2014. If the company uses the units-of-activity method of depreciation, the amount of depreciation expense for 2014 would be O $60,000 O $75,000. 0 $30,000 $37,500