A depreciable asset with a cost of $42350 has a residual value of $2400 and a useful life of 5 years. Total estimated units of output are 79900 and in year 1 a total of 5.00 units were produced. Under the straight-line method and the units-of-activity method the depreciation expense for the first year would be Straight-line Units-of-activity $8470.00 $8470.00 $7990.00 $7990.00 eTextbook and Media