Solar Innovations Corporation bought a machine at the beginning of the year at a cost of $30,000. The estimated useful life was five years and the residual value was $3,000. Assume that the estimated productive life of the machine is 10,000 units. Expected annual production for year 1, 1,900 units; year 2, 2,900 units; year 3, 1,900 units; year 4, 1,900 units; and year 5, 1,400 units. Required: 1. Complete a depreciation schedule for each of the alternative methods