ENGR.ECONOMIC ANALYSIS
ENGR.ECONOMIC ANALYSIS
14th Edition
ISBN: 9780190931919
Author: NEWNAN
Publisher: Oxford University Press
Question
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Chapter 11, Problem 10P
To determine

(a)

The depreciation schedule using MACRS method.

Expert Solution
Check Mark

Answer to Problem 10P

The depreciation schedule using MACRS is shown below.

Year (t) Depreciation dt=rt×B
1 $7,000
2 $11,200
3 $6,720
4 $4,032
5 $4,032
6 $2,016
Total $35,000

Explanation of Solution

Given:

Cost of the small motorboat is $35,000.

Time period is 5years.

Concept used:

Write the expression to calculate the depreciation value for the motorboat.

dt=B×rt ...... (I)

Here, the depreciation value is dt, the cost of the motorboat is B and the MACRS percentage is rt.

Calculation:

The given asset comes under MACRS “automobiles and trucks” designation. Thus it is considered as a 5 year property with ADR of 5 years. Using MACRS GDS 5 year property table calculate the depreciation for the motorboat.

Calculate the depreciation for motorboat.

Substitute, $35,000 for B and 20% for rt in Equation (I)

dt=$35,000×20%=$7,000

Calculate the depreciation for 5 years and enter them in a table below.

Year (t) MACRS (rt) Cost (B) Depreciation dt=rt×B
1 20% $35,000 $7,000
2 32% $35,000 $11,200
3 19.20% $35,000 $6,720
4 11.52% $35,000 $4,032
5 11.52% $35,000 $4,032
6 5.76% $35,000 $2,016
Total 100% $35,000

Conclusion:

The depreciation schedule using MACRS is shown below.

Year (t) Depreciation dt=rt×B
1 $7,000
2 $11,200
3 $6,720
4 $4,032
5 $4,032
6 $2,016
Total $35,000
To determine

(b)

The depreciation schedule using SOYD method.

Expert Solution
Check Mark

Answer to Problem 10P

The depreciation schedule using SOYD is shown below.

Year (t) Depreciation (dt)
1 $9,167
2 $7,333
3 5,500
4 $3,667
5 $1,833
Total $27,500

Explanation of Solution

Given:

Cost of the small motorboat is $35,000.

Time period is 5years.

Salvage value is $7,500.

Concept used:

SOYD is known as sum of year’s digits depreciation.

Write the expression to calculate the depreciation of the motorboat.

dt=nt+1SOYD(BS)dt=nt+1[n(n+1)2](BS) ...... (II)

Here, the depreciation value is dt, total number of years is n, cost of the motorboat is B, particular year is t and salvage value after depreciable life is S.

Calculation:

Calculate the depreciation using SOYD for the motorboat.

Substitute, 5 for n, $35,000 for B and $7,500 for S in Equation (II).

dt=5t+1[5(5+1)2]($35,000$7500)=(6t)15×($27,500)=$1,833.33(6t) ...... (III)

Calculate the depreciation value for 5 years.

Year (t) Depreciation (dt)
1 $9,167
2 $7,333
3 5,500
4 $3,667
5 $1,833
Total $27,500

Here, calculate the depreciation from Equation (III).

Conclusion:

The depreciation schedule using SOYD is shown below.

Year (t) Depreciation (dt)
1 $9,167
2 $7,333
3 5,500
4 $3,667
5 $1,833
Total $27,500

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