Answer: Straight line method is $7,400 per year.
Double declining balance method is $ 14,800 per year.
Explanation:
Depreciation on a straight line basis is calculated thus:
Cost - Residual value/ useful life
= (36,000 - 6,400)/ 4
= 7,400 per year
Depreciation on double declining method is calculated thus:
100% / useful life
100%/4 = 25
25%*2= 50%
Cost - residual value * 50%
36,000 - 6,400* 50%
29,600* 50%
=$14,800 for the first and second year