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Finance

Break-even charts and the margin of safety

  • 2 things to know
  • Component 02

Overview

Recall questions on reading a break-even chart, its axes and fixed cost, total cost and total revenue lines, the profit and loss areas, calculating the margin of safety, and how the chart shifts when costs or price change.

What you need to know

Answer each one before you reveal it.

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Key term

What is measured on each axis of a break-even chart?

Key term

Which part of a break-even chart shows the business making a loss?

Questions from this subtopic

Each one with the model answer underneath.

  1. 1

    What is measured on each axis of a break-even chart?

    Model answer

    Output in units is measured along the horizontal axis and costs and revenues in pounds up the vertical axis.

  2. 2

    Describe the fixed cost line on a break-even chart.

    Model answer

    It is a horizontal line at the level of fixed costs, because fixed costs are the same at every level of output.

  3. 3

    Where does the total cost line start, and what decides how steeply it rises?

    Model answer

    It starts on the vertical axis at the level of fixed costs, and its gradient is the variable cost per unit.

  4. 4

    Where does the total revenue line start on a break-even chart, and what decides its gradient?

    Model answer

    It starts at the origin, because no output means no revenue, and its gradient is the selling price per unit.

  5. 5

    What does the point where the total revenue line crosses the total cost line show?

    Model answer

    It shows the break-even output, where revenue exactly equals total costs.

  6. 6

    At an output to the right of break-even, what does the vertical gap between the revenue and total cost lines represent?

    Model answer

    It represents the profit made at that level of output.

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