At the beginning of the year, Palermo Brothers, Incorporated, purchased a new plastic water bottle-making machine at a cost of $52,000. 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 470,000 units. Actual annual production was as follows: Year Units 1 141,000 2 103,400 3 129,250 4 96,350 Required: 1. Complete a separate depreciation schedule for each of the alternative methods. Straight-line. Units-of-production. Double-declining-balance.