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Will the fixed fee survive a delivery overrun?
Include labor, subcontractors, contingency and expenses in a project contribution case.
Example scenario
Editable demonstration inputs, not verified industry benchmarks. Enable JavaScript to calculate your own scenario.
- Fixed project fee
- $150,000
- Estimated delivery hours
- 900
- Loaded delivery cost / hour
- $85
- Hours contingency / expected overrun
- 20 %
- Subcontractor costs
- $12,000
- Unreimbursed project expenses
- $5,000
Project contribution after contingency
Example result only, not a forecast or promise.
- Contribution margin
- 27.5%
- Estimated total delivery cost
- $108,800
- Maximum total hours before contribution turns negative
- 1,564.7
What to do with this result
Review task-level estimates and acceptance criteria; keep reimbursable expenses separate from delivery revenue.
Know what is inside the model.
Planning model, not personalized financial advice. Your inputs remain in your browser.
Calculation method
Project contribution = fee − estimated hours × (1 + overrun) × loaded hourly cost − subcontractors − unreimbursed expenses.
Assumptions and limitations
- Example inputs are editable scenarios, not Aryo results or independently verified industry benchmarks.
- Use collected revenue and fully loaded delivery costs consistently. Released time is capacity, not automatically a cash saving.