Nicoles Getaway Spa (NGS) purchased a hydrotherapy tub system to add to the wellness programs at NGS. The machine was purchased at the beginning of 2014 at a cost of $8,500. The estimated useful life was five years, and the residual value was $500. Assume that the estimated productive life of the machine is 10,000 hours. Expected annual production was: year 1, 2,250 hours; year 2, 2,350 hours; year 3, 2,300 hours; year 4, 2,100 hours and year 5, 1,000 hours. Required: 1. Complete a depreciation schedule for each of the alternative methods. (Do not round intermediate calculations. Round your final answers to the nearest dollar.) a. Straight-line. b. Units-of-production. c. Double-declining-balance.