- Equipment was purchased for $136,000. - Freight charges amounted to $5,600 - It is estimated that the equipment will have a $24,000 residual value at the end of its 5 -year useful life. Depreciation expense each year using the straight-line method will be Hint all costs to purchase the asset and get it ready to use, become part of the cost of the asset. $19,680 $19,200 $23,520 $28,320