Contribution Margin Calculator

This calculator shows how much each sale contributes toward covering fixed costs and generating profit after variable costs are deducted.

Contribution margin is one of the most important metrics in business because it connects pricing, costs, and profitability. It determines how quickly you reach break-even and how efficiently your business generates profit.

If your contribution margin is too low, your business will require significantly higher revenue to become profitable.

Result Explanation

The contribution value shows how much each sale generates after variable costs. This amount is used to cover fixed costs and generate profit.

The contribution margin percentage shows how efficient your pricing is. A higher percentage means more profit potential per sale.

How It Works

Contribution = Price − Variable Cost

Margin % = (Contribution ÷ Price) × 100

This reveals how much of each sale contributes toward profitability after variable costs are removed.

Strategy & Pricing Insight

Contribution margin is the foundation of all pricing strategy. It directly determines your break-even point and overall profitability.

If your contribution margin is low, you must generate significantly more revenue to cover fixed costs. Increasing margin — even slightly — can dramatically reduce your break-even point and increase profit.

For ecommerce businesses, this is critical when factoring in advertising costs, platform fees, shipping and VAT. A product that appears profitable at a gross level may be unprofitable after all costs are included.

Examples

Example 1:
Price £30, Cost £12 → Contribution £18 → 60% margin

Example 2:
Price £100, Cost £70 → Contribution £30 → 30% margin

Example 3:
Lower margin products require significantly higher sales volume to generate profit.

Related Calculators

• Break-even Revenue
• Net Profit
• Margin Calculator
• Markup Calculator
• Target Profit

FAQ