Shining Cookle Company, Inc. In Murfreesboro, TN bought a new ice cream maker at the beginning of the year at a cost of $24,000. The estimated useful life was four years, and the residual value was $2,160. Assume that the estimated productve life of the machine Was 10,400 hours. Actual annual usage was 4,160 hours in year 1,3,120 hours in year 2,2,080 hours in year 3 , and 1,040 hours in year 4 Required: 1. Complete a separate depreciation schedule for each of the alternative methods. (Do not round intermediate calculations.) a. Straight-line