Compute the depreciation expense for each of the four years, using double-declining-balance depreciation. (Do not round you intermediate calculations. Round final answers to the nearest whole dollar amount.) Compute the depreciation expense for each of the four years, using units-of-production depreciation. (Round cost per unit to three decimal places, Round other intermediate calculations and your final answers to the nearest doliar.) Calculate the amount of gain or loss from the sale of the asset under each of the depreciation methods. (Amounts to be deducted should be indicated with minus sign.) Exact Photo Service purchased a new color printer at the beginning of Year 1 for $40,200. The printer is expected to have a four-year useful life and a $4,020 salvage value. The expected print production is estimated at 1,500,000 pages. Actual print production for the four years was as follows: The printer was sold at the end of Year 4 for $4,220. Required a. Compute the depreciation expenie for each of the four years, using double-declining-balance depreciation. b. Compute the depreciation expense for each of the four years, using units-of-production depreciation. c. Calculate the amount of gain or loss from the sale of the asset under each of the depreciation methods