Strong Metals Inc. purchased a new stamping machine at the beginning of the year at a cost of $780,000. The estimated residual value was $72,800. Assume that the estimated usefull life was five years, and the estimated productive life or the machine was 272,000 units. Actual annual production was as follows Year Units 1 76,000 2 69,000 3 31,000 4 61,000 5 35,000 Required 1. Complete a separate depreciation schedule for each of the alternative methods. (Do not round your intermediate calculations.) a. Straight-line Year Book Value At acquisition Units-of-production Year Book Value At acquisition C. Double-declining-balance. on Accumulated Net Year Ex ciation Book Value At acquisition