Operating Leverage

Written by True Tamplin, BSc, CEPF®

Reviewed by Subject Matter Experts

Updated on June 13, 2023

Operating Leverage: Definition

Leverage that is associated with investment activities or asset acquisition is called operating leverage.

In fact, the relationship between sales revenue and EBIT is referred to as operating leverage because when the sales level increases or decreases, EBIT also changes.

This means that operating leverage measures the relationship between sales revenue and EBIT.

Key Points

  • The relationship between sales revenue and EBIT is known as operating leverage
  • EBIT may vary directly in proportion to sales
  • EBIT may vary disproportionately to sales
  • Operating leverage is also calculated as a ratio of contribution to sales

Formula for Operating Leverage

Operating Leverage Formula

Operating Leverage: Explanation

Whether an enterprise has fixed operating expenses in its income is the factor that determines operating leverage. Normally, the operating cost of an enterprise falls into one of three categories:

Fixed costs do not vary with the volume of sales, whereas variable costs vary directly with sales volume.

Semi-variable or semi-fixed costs are partly variable and partly fixed. This means that they are fixed up to a certain sales volume, varying to higher levels when production and sales volume increase.

If the semi-variable or semi-fixed costs can be apportioned appropriately into variable and fixed components, then the costs of the firm remain of two categories: fixed and variable.

In fact, operating leverage occurs when a firm has fixed costs that need to be met regardless of the change in sales volume.

The enterprise invests in fixed assets aiming for the volume to produce revenues that cover all fixed and variable costs.

After calculating the leverage by applying the formula, if the result is equal to 1, then the operating leverage indicates that there are no fixed costs, and the total cost is variable in nature.

This means that EBIT varies in direct proportion to the sales level.


EREHWON Ltd sold 200 units at $200 per unit with a production cost of $140 per unit. The total cost is variable in nature. The point of the company is equal to 200 (200-140) = $12,000 (EBIT).

Suppose that the company increases its sales by 20%, resulting in sales of 240 units. Then the EBIT value increases to 240 x (200-140) = $14,400.

Operating Leverage Calculation

Note: In this example, EBIT varies directly in proportion to sales.

Required: Suppose that the company has fixed costs of $10,000, along with the variable cost of 140 per unit. What are the present and expected costs and EBIT? What is the operating leverage?

For answers, see the tables below.


Solution Data
Operating Leverage Solution Working

Degree of Operating Leverage (DOL)

In the above example, EBIT varied disproportionately to sales. This variation of one time or six-time (the above example) is known as degree of operating leverage (DOL).

The DOL at any particular sale volume may also be calculated as a ratio of contribution to the EBIT. In other words:

Degree of Operating Leverage Formula

In the above example, DOL is calculated as follows:

Calculation of Degree of Operating Leverage

This information shows that at the present level of operating sales (200 units), the change from this level has a DOL of 6 times.

However, if the company's expected sales are 240 units, then the change from this level would have a DOL of 3.27 times. This example indicates that the company will have different DOL values at different levels of operations.

One important point to be noted is that if the company is operating at the break-even level (i.e., the contribution is equal to the fixed costs and EBIT is zero), then defining DOL becomes difficult.

For example, if both the contribution and fixed costs are $12,000, then EBIT is zero (12,000 - 12,000 = 0).


Undefined Degree of Operating Leverage

Analyzing operating leverage helps managers assess the impact of changes in sales on the level of operating profits (EBIT) of the enterprise. Higher DOL means higher operating profits (positive DOL), and negative DOL means operating loss.

Operating Leverage in a Nutshell

  • Operating leverage arises due to fixed costs in an organization's cost structure. If there are no fixed costs, there is no operating leverage because the percentage change in EBIT will be the same as the percentage change in sales (i.e., one time).
  • If the contribution is equal to fixed costs, the degree of leverage remains undefined.
  • If the company operates above the break-even level, then DOL is considered positive (both EBIT and sales vary in the same direction).
  • If the company operates below the break-even level, DOL is considered negative (the contribution is less than the fixed costs).
  • If the company operates with fixed costs that are fixed and variable costs that vary with sales volume, then DOL will vary disproportionately at different levels of operating sales.

Operating Leverage FAQs

About the Author

True Tamplin, BSc, CEPF®

True Tamplin is a published author, public speaker, CEO of UpDigital, and founder of Finance Strategists.

True is a Certified Educator in Personal Finance (CEPF®), author of The Handy Financial Ratios Guide, a member of the Society for Advancing Business Editing and Writing, contributes to his financial education site, Finance Strategists, and has spoken to various financial communities such as the CFA Institute, as well as university students like his Alma mater, Biola University, where he received a bachelor of science in business and data analytics.

To learn more about True, visit his personal website or view his author profiles on Amazon, Nasdaq and Forbes.