Purity Ice Cream Company bought a new ice cream maker at the beginning of the year at a cost of $14,000. The estimated useful life was four years, and the residual value was $980. Assume that the estimated productive life of the machine was 9,300 hours. Actual annual usage was 3,720 hours in year 1; 2,790 hours in year 2; 1,860 hours in year 3; and 930 hours in year 4.

Required:
1.	Complete a separate depreciation schedule for each of the alternative methods. (Do not round intermediate calculations.)

.

Straight-line

year	depreciation expense	accumulated depreciation	net book value
at acquisition
1
2
3
4

Units-of-production (use four decimal places for the per unit output factor).

year	depreciation expense	accumulated depreciation	net book value
at acquisition
1
2
3
4

Double declining balance

year	depreciation expense	accumulated depreciation	net book value
at acquisition
1
2
3
4