Chapter 3

How to calculate your break-even point

Find out how to calculate the break-even point in sales and units for your online business.


A business has two ways to calculate its break-even point: in units and sales. You can use a unique BEP formula to calculate your break-even point for either scenario.

Calculate your break-even point in units

Calculating your break-even point (BEP) in units means calculating the number of units you need to sell to come to a neutral financial position. This is established through the following formula:

Break-Even Point (units) = Fixed Costs ÷ (Revenue Per Unit – Variable Cost Per Unit)

Calculate your break-even point in sales value

Alternatively, ecommerce businesses can choose to calculate their break-even point (BEP) in sales value:

Break-Even Point (Sales in GBP) = Fixed Costs ÷ Contribution Margin

Contribution margin here refers to your product’s selling price less variable costs per unit. Once you have calculated your BEP, you can use it to set your sales target, explore possible cost cutting measures and evaluate the need to raise your prices.

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