Act on the result
Approve the new fixed cost only if planned incremental units meet the recovery units threshold in the same period.
Educational only: Business decision support, not accounting, tax or legal advice.
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Update policy: Reviewed when formulas or official dependencies change.
Scope: Market-neutral small-business planning using your own assumptions.
What this planner helps you decide
Best for
Owners assessing whether incremental volume can recover a new fixed cost.
Outputs
Recovery units, planned contribution, surplus and recovery rate.
Start here
Use incremental contribution per unit and count only genuinely additional volume.
Use a different tool when: Do not use this to calculate break-even for an explicit product mix; use Weighted Multi-product Break-even Planner for that decision. Use this tool to recover an incremental fixed cost.
Profit & break-even
Fixed Cost Recovery: recovery units
Recovery units, planned contribution, surplus and recovery rate.
Amounts use the same currency as your inputs. No currency conversion is performed.
Fixed Cost Recovery
Measure the incremental units needed to recover a fixed-cost increase.
Your numbers stay in this browser
Incremental fixed cost for the period. Use one consistent ex-tax monetary basis.
Price less variable cost per extra unit. Use one consistent ex-tax monetary basis.
Additional units expected in the period.
Decision result
Each output is bound to its own registered engine formula step.
PDF and CSV exports stay on this device. Clean page links contain no inputs.
- Recovery units
- 750 units
- Contribution At Planned Units Ex Tax
- 40,000.00
- Recovery Surplus Ex Tax
- 10,000.00
- Recovery Rate
- 133.3%
Scenario comparison
Each row names the assumption axis changed from the baseline.
ScenarioResultDifference
Current scenario750 unitsBaseline
Lower Planned incremental units750 units0 units
Higher Planned incremental units750 units0 units
Save these results, change an input, then compare the updated figures with this baseline.
The baseline is temporary in this tab and is not added to shared scenario links or generated reports.
Calculation details
View calculation detailsView the formulas and inputs used for these results.
Recovery units
Recovery Units
ceil(fixed-cost increase / contribution per unit)750 whole units/planning periodResult750 units
Reports units for the entered planning period using the declared ex-tax revenue, cost and capacity basis. The engine retains full precision; only presentation is rounded.
Fixed Cost Recovery Planner formulas →Inputs used by these formula steps
- Recovery UnitsFixed Cost Increase Ex Tax
- 30,000
- Recovery UnitsContribution Per Unit Ex Tax
- 40
- Recovery UnitsPlanned Incremental Units
- 1,000
Contribution At Planned Units Ex Tax
Contribution At Planned Units Ex Tax
contribution per unit × planned incremental units40,000.00Result40,000.00
Reports money for the entered planning period using the declared ex-tax revenue, cost and capacity basis. The engine retains full precision; only presentation is rounded.
Fixed Cost Recovery Planner formulas →Inputs used by these formula steps
- Contribution At Planned Units Ex TaxFixed Cost Increase Ex Tax
- 30,000
- Contribution At Planned Units Ex TaxContribution Per Unit Ex Tax
- 40
- Contribution At Planned Units Ex TaxPlanned Incremental Units
- 1,000
Recovery Surplus Ex Tax
Recovery Surplus Ex Tax
planned contribution − fixed-cost increase10,000.00Result10,000.00
Reports money for the entered planning period using the declared ex-tax revenue, cost and capacity basis. The engine retains full precision; only presentation is rounded.
Fixed Cost Recovery Planner formulas →Inputs used by these formula steps
- Recovery Surplus Ex TaxFixed Cost Increase Ex Tax
- 30,000
- Recovery Surplus Ex TaxContribution Per Unit Ex Tax
- 40
- Recovery Surplus Ex TaxPlanned Incremental Units
- 1,000
Recovery Rate
Recovery Rate
planned contribution / fixed-cost increase1.33 percentResult133.3%
Reports percent for the entered planning period using the declared ex-tax revenue, cost and capacity basis. The engine retains full precision; only presentation is rounded.
Fixed Cost Recovery Planner formulas →Inputs used by these formula steps
- Recovery RateFixed Cost Increase Ex Tax
- 30,000
- Recovery RateContribution Per Unit Ex Tax
- 40
- Recovery RatePlanned Incremental Units
- 1,000
Inputs used
- Fixed-cost increase
- 30,000.00
- Contribution per unit
- 40.00
- Planned incremental units
- 1,000
Open this calculator with preset values
This calculator supports documented, shareable scenario URLs. Compatible assistants and applications can construct links using the parameters below.
Scenario links contain only allowlisted numeric and closed-choice inputs shown in the URL; Margin101 excludes free text and identifying fields. Anyone you share the URL with can read those numbers, so do not include private or identifying data.
| Parameter | Meaning | Unit | Allowed values | Presence | Default |
|---|---|---|---|---|---|
| contributionPerUnitExTax | Price less variable cost per extra unit. Use one consistent ex-tax monetary basis. | currency units/unit, ex tax | 0 to 100000000 | Required | 40 |
| fixedCostIncreaseExTax | Incremental fixed cost for the period. Use one consistent ex-tax monetary basis. | currency units/planning period, ex tax | 0 to 100000000 | Required | 30000 |
| plannedIncrementalUnits | Additional units expected in the period. | units/planning period | 0 to 100000000 | Required | 1000 |
Fixed Cost Recovery: recovery units
Recovery units shows the additional whole-unit volume needed for incremental contribution to cover the fixed-cost increase.
Formula summary
- Primary formula
- recovery units = ceil(fixed-cost increase / contribution per unit)
Data used here
- The estimate uses your inputs and the general business formula documented in the methodology.
Decision checks
Stress-test the decision
Retest planned incremental units as whole units per planning period and contribution per unit in currency units, ex tax.
When this estimate can be misleading
- Results depend on complete, consistently classified inputs.
- Demand, timing, quality and strategic fit remain separate decisions.
- This is educational business decision support, not accounting, tax, legal or financial advice.
- Recovery units shows the additional whole-unit volume needed for incremental contribution to cover the fixed-cost increase.
Educational estimate, not advice. See all assumptions & limitations →
Related reading
Guides to interpret the decision and its assumptions.
- Break-Even Analysis: Threshold, Not Forecast
Turn unit contribution and fixed costs into a sales threshold, then test whether the required volume and capacity are plausible.
Read guide
Frequently asked questions
How do I recover an incremental fixed cost?
Approve the new fixed cost only if planned incremental units meet the recovery units threshold in the same period.
Which planning assumptions should I stress-test?
Compare a plausible alternative scenario and verify the decision-critical assumption that changes the plan most.