need help with this question. Thanks in advance.

Required information [The following information applies to the questions displayed below.] Exact Photo Service purchased a new color printer at the beginning of Year 1 for $37,790. The printer is expected to have a four-year useful life and a $3,800 salvage value. The expected print production is estimated at $1,773,100 pages. Actual print production for the four years was as follows: The printer was sold at the end of Year 4 for $3,950. Required: a. Compute the depreciation expense for each of the four years, using double-declining-balance depreciation. Note: Do not round intermediate calculations. Round your answers to the riparest whole dollar amount. b. Compute the depreciation expense for each of the four years, using units-of-production depreciation. Note: Round cost per unit to three decimal places and final answers to the nearest whole dollar amount