Purity ice cream Company bought a new ice cream maker at the beginning of the year at a cost of $ 28,000 The estimated useful life was four years, and the residual value was $ 2,560. Assume that the estimated productive life of the machine was 10,600 hours. Actual annual usage was 4,240 hours in year 1; 3,180 hours in year 2; 2,120 hours in year 3, and 1,060 hours in year 4. Complete a separate depreciation schedule for each of the alternative methods. a Straight-line. b. Units of production (use four decimal places for the per unit output factor) c Double-declining-balance