428 Accounting: Business Reporting for Decision Making
(continued)
profit or the desired profit. In the previous example, ATC needed to have 30 players to break even for
the tournament. The statement of profit or loss at the break-even level of players and players to achieve
a profit of $600 (40 players) is shown in figure 10.7.
Advantage Tennis Coaching
Statement of profit or loss at the break-even level of sales (players)
30 players 40 players
Sales ($150)
Less: Variable costs ($90)
$ 4 500
2 700
$ 6 000
3 600
Contribution margin
Less: Fixed costs
1 800
1 800
2 400
1 800
Profit $ 0 $ 600
FIGURE 10.7 Statement of profit or loss at the break-even level of sales
CVP can be used in an equation form or as a ratio. In some circumstances, the unit data may not be
available, or the aim may be to calculate the break-even in total sales dollars. In such circumstances,
the contribution margin ratio can be used. This issue is explored later in this chapter.
The break-even calculation can be viewed as an equation in the following form.
s(x) = vc(x) + fc for break-even and
s(x) = vc(x) + fc + p for meeting a desired profit
where:
s = selling price per unit
x = number of units
vc = variable cost per unit
fc = fixed costs
p = desired profit
We have explored only the very basics of CVP analysis here. Each entity would need to find its own
application of the concepts outlined. CVP analysis provides the opportunity for spreadsheet analysis,
including ‘what if’ and sensitivity analysis. Indeed, some entities use quite complex modelling to
identify break-even points. Moreover, some entities adapt the basics outlined here to suit their own
environment. For example, transport entities speak of break-even kilometres or miles, hotels speak of
break-even occupancy rates, and airlines speak of break-even passenger miles or kilometres. While each
of these calculations will be made at a more complex level, they still require an understanding of the
fundamentals outlined here.
Another measure that can be used to assess risk associated with sales is the margin of safety. The
margin of safety is commonly regarded as the excess of revenue (or units of sales) above the break-even
point. It provides an indication of how much revenue (sales in units) can decrease before reaching the
break-even point, and may be calculated as:
Margin of safety
in units
=Actual or estimated units
of activity
- Units at break-even
point
Margin of safety
in revenues
=Actual or estimated
revenues
- Revenues at break-even
point
If the margin of safety is small, managers may put more emphasis on reducing costs and increasing
sales to avoid potential loss. A larger margin of safety gives managers more confidence in making plans
such as incurring additional fixed costs.