Exact Photo Service purchased a new color printer at the beginning of 2018 for $40,900. The printer is expected to have a four-year useful life and a $1,636 salvage value. The expected print production is estimated at 1,500,000 pages. Actual print production for the four years was as follows:

2018	548,500
2019	476,300
2020	378,500
2021	394,900
Total	1,798,200

The printer was sold at the end of 2021 for $1,836.

Required a. Compute the depreciation expense for each of the four years, using double-declining-balance depreciation. (Do not round your intermediate calculations. Round final answers to the nearest whole dollar amount. Leave no cells blank - be certain to enter "0" wherever required.) Double-Declining Balance 2018 2019 2020 2021 Required b. Compute the depreciation expense for each of the four years, using units-of-production depreciation. (Round cost per unit to three decimal places. Round your final answers to nearest dollar amount.) Units-of- Production 2018 2019 2020 2021 c. 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.) Depreciation Methods Amount Effect Double-Declining Balance Units-of-Production