Strong Metals Incorporated purchased a new stamping machine at the beginning of the year at a cost of $1,235,000. The estimated residual value was $65,000. Assume that the estimated useful life was five years and the estimated productive life of the machine was 300,000 units. Actual annual production was as follows:

Year	Units
1	70,000
2	67,000
3	50,000
4	73,000
5	40,000

Required:

1. Complete a separate depreciation schedule for each of the alternative methods.

Straight-line.

Units-of-production.

Double-declining-balance.