need help with question 2

Exact Photo Service purchased a new color printer at the beginning of Year 1 for $42,200. The printer is expected to have a four-year useful life and a $4,220 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 $4.420. Required a. Compute the depreciation expense for each of the four years, using double-decining-balance depreclation. 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