It depends on risk and alternatives. Many businesses look for a positive ROI and compare options on ROI plus payback time.

What if my ROI is negative?

A negative ROI means the return was less than the investment. The calculator will show a negative profit and ROI%.

Does ROI include time?

Basic ROI doesn’t account for time. For time-based growth, consider CAGR or compare ROI across the same time period.

Break-even Revenue from Contribution Ratio

Calculate break-even revenue using fixed costs and contribution margin ratio. A fast method for forecasting sales targets.

Use this calculator when you need a fast, reliable answer without opening a spreadsheet. Enter your figures below and press Calculate. PercentNinja shows the key outputs you typically need for pricing decisions, VAT checks, ecommerce payouts or ad reporting.

When to use this

Checking a price before you publish it on your website or marketplace
Planning profitability (margin, fees or VAT) before running ads
Quick sanity-checks for invoices, quotes or campaign reports

Calculate

Results are estimates for informational purposes only and may be rounded.

Tip: Press Enter to calculate.

Worked examples

Example 1

Question: Fixed costs £5,000, ratio 40%.

Break-even revenue = 5,000 ÷ 0.40 = £12,500

Example 2

Question: Fixed costs £1,200, ratio 25%.

Break-even revenue = 1,200 ÷ 0.25 = £4,800

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