Perdue Company purchased equipment on April 1 for $49,800. The equipment was expected to have a useful life of three years, or 6,900 operating hours, and a residual value of $1,500. The equipment was used for 1,200 hours during Year 1, 2,400 hours in Year 2, 2,100 hours in Year 3, and 1,200 hours in Year 4.

Required:

Determine the amount of depreciation expense for the years ended December 31, Year 1, Year 2, Year 3, and Year 4, by (a) the straight-line method, (b) the units-of-activity method, and (c) the double-declining-balance method. Note: Round all final values for each depreciation method and each year to the nearest whole dollar.

a. Straight-line method

Year	Amount
Year 1	$fill in the blank 1
Year 2	$fill in the blank 2
Year 3	$fill in the blank 3
Year 4	$fill in the blank 4

b. Units-of-activity method

Year	Amount
Year 1	$fill in the blank 5
Year 2	$fill in the blank 6
Year 3	$fill in the blank 7
Year 4	$fill in the blank 8

c. Double-declining-balance method

Year	Amount
Year 1	$fill in the blank 9
Year 2	$fill in the blank 10
Year 3	$fill in the blank 11
Year 4	$fill in the blank 12