on January 2, 2015 sandy inc purchases equipment for 84000. The estimated useful life is five year and the estimated salvage residual is 4000. the equipment is expected to produce 1600000 units

Question: Assume that Sandy inc utilized the straight line depreciation method and after 3 three years estimates that the total useful life of the equipment will be 6 years. Prepare the journal entry to recognize depreciation expense for year 4