Calculate contribution margin before scaling an offer
Revenue growth can consume cash when each additional sale creates little contribution. Contribution margin helps founders see what remains after the costs that change with the sale.
Define variable costs consistently
Start with net sales and subtract relevant variable delivery, payment, packaging and commission costs. Keep the definition stable across comparisons. Fixed overhead still needs funding, so positive contribution does not automatically mean the business is profitable. Review differences by product and customer segment.
A worked example
An illustrative service sells for ₹10,000 and incurs ₹6,500 of variable delivery costs. Its ₹3,500 contribution must still cover fixed salaries, rent and other overhead before profit exists.
Illustrative scenario; this is not a claim about an actual Conxn client or guaranteed results.
Your action checklist
- List all sale-linked costs
- Separate fixed and variable assumptions
- Review contribution by offer
Is contribution margin the same as gross margin?
Definitions can differ by accounting and management use. Write your calculation explicitly and reconcile it with your accountant's reporting rather than assuming labels are interchangeable.
AI-assisted editorial guide for practical business planning. Adapt the framework to your context and seek qualified advice for material financial, legal, employment or contractual decisions.