E9-6 Computing Depreciation under Alternative Methods [LO 9-3] Solar Innovations Corporation bought a machine at the beginning of the year at a cost of $23,000. The estimated useful life was five years and the residual value was $2,000. Assume that the estimated productive life of the machine is 15,000 units. Expected annual production was year 1, 3,000 units; year 2, 4,000 units; year 3, 3,000 units; year 4, 3,000 units; and year 5, 2,000 units. Required: 1. Complete a depreciation schedule for each of the alternative methods. (Do not round intermediate calculations.) a. Straight-line Income Statement Depreciation Expense Balance Sheet Year Cost Depreciation Book Value At acquisition 3 5