How it works
Margin of safety = actual sales − break-even sales; divide by actual sales for the percentage.
Input definitions
- Actual or forecast sales
- Enter the value in the labeled unit.
- Break-even sales
- Enter the value in the labeled unit.
A worked example
- Actual or forecast sales
- 100000
- Break-even sales
- 75000
Assumptions & limits
Uses the accounting classifications, periods and policies you enter. Illustrative management-accounting model; it is not an audited statement, filing or determination of local accounting or tax compliance.
Sources & review
Maintained by AnsRio. Methods and examples use automated checks; this does not imply independent professional certification.
Method updated 2026-10-18. Content checked against the stated method and examples. Our verification approach.
Common questions
Can the margin of safety be negative?
Yes. It means actual or planned sales are below the supplied break-even sales level.
How does Margin of safety in sales work?
Margin of safety = actual sales − break-even sales; divide by actual sales for the percentage.
What should I check before using Margin of safety in sales?
Uses the accounting classifications, periods and policies you enter. Illustrative management-accounting model; it is not an audited statement, filing or determination of local accounting or tax compliance.