Strong Metals Inc. purchased a new stamping machine at the beginning of the year at a cost of $960,000. The estimated residual value was $80,800. Assume that the estimated useful life was five years, and the estimated productive life of the machine was 314,000 units. Actual annual production was as follows: Year Units 1 84,000 2 72,000 3 39,000 4 67,000 5 52,000 Required