During Year 1, the machine produced 54,000 units, and during Year 2 it produced 56,000 units. Required: a. Determine the amount of depreciation expense for Year 1 and Year 2 using straight-line method. b. Determine the amount of depreciation expense for Year 1 and Year 2 using double-declining-balance method. c. Determine the amount of depreciation expense for Year 1 and Year 2 using units of production method. d. Determine the amount of depreciation expense for Yeat 1 and Year 2 using MACRS, assuming that the machine is classified as seven-year property. Note: Round your answers to the neorest dollar amount