Estimate contribution after ad spend from an illustrative or entered cost per qualified lead, completed paid-job conversion, job value, and contribution margin.
Last updated: April 30, 2026
Adjust the operator variables, then read the live result panel.
Changing channel changes the illustrative lead-cost preset only when no entered cost-per-lead override is active.
Contribution after ad spend before other overhead
Using the calculator
Monthly spend and the applied cost per qualified lead produce expected qualified leads. The entered conversion rate is completed paid jobs divided by those qualified leads.
The calculator then applies average job value and contribution margin before subtracting ad spend. Its headline is contribution after ads and before other overhead, not revenue return on ad spend.
The channel selector supplies an illustrative planning cost per qualified lead. Enter your actual cost per qualified lead in advanced inputs to replace that preset.
An entered override remains active when the selected channel changes. The result panel identifies the applied source and value so the visible channel label cannot be mistaken for the active cost.
Use the same qualified-lead and completed paid-job definitions across scenarios. Expected leads and jobs may be fractional planning quantities.
Compare contribution after ad spend, the modeled ad return, and completed-job acquisition cost while keeping the other inputs consistent.
The model assumes a constant cost per lead and conversion rate at the entered budget. It does not estimate saturation, repeat business, lifetime value, overhead, owner income, or taxes.
Use observed campaign and paid-job data when available. Channel costs are illustrative scenarios, not current local market averages.
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No. It divides modeled contribution after ad spend by the entered ad spend. It is not revenue divided by ad spend.
It is completed paid jobs as a share of the same qualified leads used for cost per lead. Do not count uncollected bookings as completed paid jobs.
Your entered cost-per-qualified-lead override remains active until cleared. The result summary identifies it as the applied source.
No. The headline contribution is after modeled ad spend but before other overhead, owner income, and taxes.
Resources
Use a consistent qualified-lead and paid-job definition as you compare marketing scenarios.
