Answer:
In these calculations it is assumed that the accounting year is taken from May to May Next Year.
Depreciation Straight Line = $ 41250
Explanation:
Given
Cost $180,000
Life= 4 years
Salvage Value= $ 15000
Formula
Depreciation Straight Line Method= Cost - Salvage Value/ Useful Life
Straight Line Rate= 100%/ useful Life= 100%/4 = 25%
Double Declining Method = 2 * Straight Line Rate
Double Declining Method = 2 * Straight Line Rate= 2*25%= 50%
1. Depreciation Straight Line Method= Cost - Salvage Value/ Useful Life
Depreciation Straight Line Method= $ 180,000- $15,000/ 4= $ 41250
The depreciation expense using the straight line method does not change unless the salvage value is reached
Years Depreciation Accumulated Dep Book Value
(Cost - Accu. Dep)
a.Year 1 $ 41250 41250 $180,000 - 41250= 138,750
b.Year 2 $ 41250 82500 $180,000 -82500= 97,500
c. Year 3 $ 41250 123750 $180,000 - 123750= 56,250
d. Year 4 $ 41250 165000 $180,000 -165000 = 15000
e. Year 5 Nil
So at the end of the fourth year the salvage value is reached. From here the depreciation expense is not applied further. These calculations indicate that the accounting year is taken from 1st May of the current year to the1st May of the next year.
But if we take the accounting year from Jan to Dec the calculations would be the same but the table would be a bit different.
Years Depreciation Accumulated Dep Book Value
(Cost - Accu. Dep)
a.Year 1 $ 24062.5 24062.5 $180,000-24062.5= 155,937.5
b.Year 2 $ 41250 65 312.5 $180,000 - 65312.5= 114687.5
c. Year 3 $ 41250 106562.5 $180,000- 106562.5= 73,437.5
d. Year 4 $ 41250 148,687.5 $180,000- 148,687.5 = 31,312.5
e. Year 5 17817.5 165000 15000
Here in the first year depreciation is calculated for 7 months and in the last year depreciation is calculated for 5 months.
41250/12 * 7= 24062.5
41250/12 *5= 17817.5
2.Straight Line Rate= 100%/ useful Life= 100%/4 = 25%
Double Declining Method = 2 * Straight Line Rate
Double Declining Method = 2 * Straight Line Rate= 2*25%= 50%
In double declining method the rate is multiplied to the cost to get the depreciation expense. 50 % of $ 180000= $ 90,000
Each year the rate is multiplied with the remaining book value after deducting the depreciation expense from the cost as $ 180,000- $ 90,000= $ 90,000
Next years depreciation will be $ 90,000 * 50%= $ 45000
This will be added in the original depreciation expense $90,000 + $ 45000 = $ 135,000 and deducted from cost to get the book value. $ 180,000- $ 135,000 = $ 45,000.
Again rate will be multiplied and each years depreciation will be calculated similarly.
It has been summarized in the table below.
Years Dep Rate Dep Expense Accu. Dep. Book Value
a. Year 1 50% 90,000 90,000 90,000
b. Year 2 50% 45,000 135,000 45000
c. Year 3 50% 22,500 157,500 22,500
d. Year 4 50% 11250 168750 11250
e. Year 5 50% 5625 174375 Nil