Plastic Works Corporation bought a machine at the beginning of the year at a cost of $17,950. The estimated useful life was five years, and the residual value was $2,850. Assume that the estimated productive life of the machine is 15,100 units. Expected annual production was: year 1, 4,700 units; year 2, 4,700 units; year 3, 2,850 units; year 4, 1,510 units; and year 5, 1,340 units. Required: 1. Complete a depreciation schedule for each of the alternative methods. (Enter all values as positive amount.) a. Straight-line. Income Statement Depreciation Expense Balance Sheet Accumulated Depreciation Year Cost Book Value At acquisition 1 2 3 4 5 b. Units-of-production. Balance Sheet Income Statement Depreciation Expense Year Cost Accumulated Depreciation Book Value At acquisition 1 2 3 4 5 c. Double-declining-balance. Balance Sheet Income Statement Depreciation Expense Year Cost Accumulated Depreciation Book Value At acquisition 1 2 3 4