@ 2012, Cengage Learning
Cost Behavior and Cost-Volume-Profit Analysis
LO 4 – Using the Graphic Approach for CVP Analysis
Cost-Volume-Profit (Break-Even) Chart
A cost-volume-profit chart, sometimes called a break-even chart, graphically shows sales, costs, and the related profit or loss for various levels of units sold.
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Cost-Volume-Profit (Break-Even) Chart
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The cost-volume-profit charts in this section are based on Exhibit 5, which was constructed using the following data:
(continued)
Cost-Volume-Profit (Break-Even) Chart
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Sal
es a
nd
Co
sts
(in
th
ou
san
ds)
0Units of Sales (in thousands)
$500
$450
$400
$350
$300
$250
$200
$150
$100
$ 50
Dollar amounts are indicated along the vertical axis.
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Volume is shown along the horizontal axis.
Cost-Volume-Profit (Break-Even) Chart
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Point APoint A
1 2 3 4 5 6 7 8 9 10
Sal
es a
nd
Co
sts
(in
th
ou
san
ds)
0
$500
$450
$400
$350
$300
$250
$200
$150
$100
$ 50
Units of Sales (in thousands)
Point A could have been plotted at any sales level, because linearity is assumed.
Cost-Volume-Profit (Break-Even) Chart
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Beginning at zero on the left corner of the graph, connect a straight line to the dot (Point A). This is
the total revenue or total sales line.
Point APoint A
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Sal
es a
nd
Co
sts
(in
th
ou
san
ds)
0
$500
$450
$400
$350
$300
$250
$200
$150
$100
$ 50
Units of Sales (in thousands)
Total Revenue
1 2 3 4 5 6 7 8 9 10
Sal
es a
nd
Co
sts
(in
th
ou
san
ds)
0
$500
$450
$400
$350
$300
$250
$200
$150
$100
$ 50
Units of Sales (in thousands)
Cost-Volume-Profit (Break-Even) Chart
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Fixed cost of $100,000 is a horizontal line.
Fixed Cost
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Sal
es a
nd
Co
sts
(in
th
ou
san
ds)
0
$500
$450
$400
$350
$300
$250
$200
$150
$100
$ 50
Units of Sales (in thousands)
Cost-Volume-Profit (Break-Even) Chart
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A point is marked at $400,000, where 10,000 units are sold.
(continued)
1 2 3 4 5 6 7 8 9 10
Sal
es a
nd
Co
sts
(in
th
ou
san
ds)
0
$500
$450
$400
$350
$300
$250
$200
$150
$100
$ 50
Units of Sales (in thousands)
Cost-Volume-Profit (Break-Even) Chart
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A line is drawn from fixed costs at zero sales ($100,000) to this point. This is the total costs line.
(continued)
Total Costs
Cost-Volume-Profit (Break-Even) Chart
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1 2 3 4 5 6 7 8 9 10
Sal
es a
nd
Co
sts
(in
th
ou
san
ds)
0
$500
$450
$400
$350
$300
$250
$200
$150
$100
$ 50
Units of Sales (in thousands)
Cost-Volume-Profit (Break-Even) Chart
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The point where the revenue (blue) line and the total costs (orange) line intersect is the break-even point.
Break-even Point
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Cost-Volume-Profit (Break-Even) Chart
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1 2 3 4 5 6 7 8 9 10
Sal
es a
nd
Co
sts
(in
th
ou
san
ds)
0
$500
$450
$400
$350
$300
$250
$200
$150
$100
$ 50
Units of Sales (in thousands)
Cost-Volume-Profit (Break-Even) Chart
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Break-even is sales of 5,000 units or $250,000.
Break-even Point
Cost-Volume-Profit (Break-Even) Chart
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1 2 3 4 5 6 7 8 9 10
Sal
es a
nd
Co
sts
(in
th
ou
san
ds)
0
$500
$450
$400
$350
$300
$250
$200
$150
$100
$ 50
Units of Sales (in thousands)
Cost-Volume-Profit (Break-Even) Chart
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Break-even Point
Operating Loss Area
Operating Profit Area
Cost-Volume-Profit (Break-Even) Chart
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A proposal to reduce fixed costs by $20,000 is to be evaluated. The cost-volume-profit chart in Exhibit 6 (next page) was designed to assist in this evaluation. Note that the total costs line has been drawn from fixed costs at zero sales of $80,000, reducing the break-even point to dollar sales of $200,000, or 4,000 units.
Profit-Volume Chart
Another graphic approach to cost-volume-profit analysis, the profit-volume chart, plots only the difference between total sales and total costs (or profits). Again, data from Exhibit 5 are used.
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Unit selling price $ 50Unit variable cost 30Unit contribution margin $ 20
Total fixed costs $100,000
Unit selling price $ 50Unit variable cost 30Unit contribution margin $ 20
Total fixed costs $100,000
Profit-Volume ChartLO 4LO 4
The maximum operating loss is equal to the fixed costs of $100,000. Assuming that the maximum unit sales within the relevant range is 10,000 units, the maximum operating profit is $100,000, as shown below.
Maximum profitMaximum profit
Profit-Volume ChartLO 4LO 4
Sales (10,000 units x $50) $500,000 Variable costs (10,000 units x $30) 300,000 Contribution margin (10,000 units x $20) $200,000 Fixed costs 120,000 Operating profit $ 80,000
Sales (10,000 units x $50) $500,000 Variable costs (10,000 units x $30) 300,000 Contribution margin (10,000 units x $20) $200,000 Fixed costs 120,000 Operating profit $ 80,000
Assume that an increase in fixed costs of $20,000 is to be evaluated. The maximum operating profit would be $80,000, as shown below:
Revised Revised Maximum profitMaximum profit
Assumptions of Cost-Volume-Profit Analysis
The primary assumptions are as follows:1. Total sales and total costs can be represented by straight
lines.
2. Within the relevant range of operating activity, the efficiency of operations does not change.
3. Costs can be divided into fixed and variable components.
4. The sales mix is constant.
5. There is no change in the inventory quantities during the period.
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