Plastic Works Corporation bought a machine at the beginning of the year at a cost of $12,000. The estimated useful life was five years, and the residual value was $2,000. Assume that the estimated productive life of the machine is 10,000 units. Expected annual production was: year 1, 3,000 units; year 2, 3,000 units; year 3, 2,000 units; year 4, 1,000 units; and year 5, 1,000 units.

(b)Units-of-production:

	Income Statement		Balance Sheet
Year	Depreciation Expense		Cost		Accumulated Depreciation		Book Value
At acquisition							$
1	$		$		$
2
3
4
5

(c)	Double-declining-balance:

	Income Statement		Balance Sheet
Year	Depreciation Expense		Cost		Accumulated Depreciation		Book Value
At acquisition							$
1	$		$		$
2
3
4