At the beginning of the year, Palermo Brothers, Inc., purchased a new plastic water bottle making machine at a cost of $45,000. The estimated residual value was $5,000. Assume that the estimated useful life was four years, and the estimated productive life of the machine was 400,000 units. Actual annual production was as follows: Year Units 1 120,000 2 90,000 3 110,000 4 50,000Required: Complete a separate depreciation schedule for each of the alternative methods. (Do not round your intermediate calculation.) 1) Double-declining-balance. 2) Units-of-production. 3) Straight-line.