STRAIGHT LINE DEPRECIATION RATE = 100%/4useful years
=25%
years | depreciable cost | depreciation rate | annual depreciation expense | accumulated depreciation | book value | ||
1 | 294000[320000-26000] | 25% | 73500 | 73500 | 246500[320000-73500] | ||
2 | 294000 | 25% | 73500 | 147000[73500+73500] | 173000[246500-73500] | ||
3 | 294000 | 25% | 73500 | 220500[147000+73500] | 99500[173000-73500] | ||
4 | 294000 | 25% | 73500 | 294000[220500+73500] | 26000[99500-73500] | ||
2. double declining rate
=100/ 4 years *2
=50%
years | depreciable cost | depreciation rate | annual depreciation expense | accumulated depreciation | book value |
2017 | 320000 | 50% | 160000 | 160000 | 160000[320000-160000] |
2018 | 160000 | 50% | 80000 | 240000[160000+80000] | 80000[160000-80000] |
2019 | 80000 | 50% | 40000 | 280000[240000+40000] | 40000[80000-40000] |
2020 | 40000 | 50% | 14000 | 294000[280000+14000] | 26000 |
As we know that book value is 26000$ at year end in 2020 depreciation would be adjusted accordingly [40000-26000]14000$ | |||||
2017 straight line would result in higher income as the depreciation is lower
double declining method would result in lower income as the depreciation is higher
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