Purity Ice Cream Company bought a new ice cream maker at the beginning of the year at a cost of $30,000. The estimated useful life was four years, and the residual value was $2,180. Assume that the estimated productive life of the machine was 10,700 hours. Actual annual usage was 4,280 hours in year 1; 3,210 hours in year 2; 2,140 hours in year 3; and 1,070 hours in year 4.

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

a.	Straight-line. (Use Table below )

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

c.	Double-declining-balance. (Use the Table, 3 sperate times, 1 for each question)

Year	Depriciation	Accumulated depreciation	Net Book Value
At Acquisition
1
2
3
4