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Lead spend ignored close-rate by source.
This marketing & margin audit surfaced $47k in recurring annual margin in a Services business — evidenced, senior-reviewed, and delivered in 5 days.
The business
A home-services company judged all of its lead sources on a single metric — cost per lead — and steered budget toward whichever channels produced leads most cheaply. Because CPL was the number everyone watched and optimized, the cheapest sources looked like the obvious winners and quietly earned an ever-larger share of the marketing budget over time.
What triggered the audit
Booked revenue per marketing dollar was stubbornly stagnant even as lead costs fell — a contradiction that only resolves when cheap leads don’t convert into paying jobs. The audit joined lead source all the way through to booked revenue, rather than stopping at the cost of generating the lead, to see which sources actually produced work.
What the audit found
Followed through to booked revenue, the ranking of channels flipped. The cheapest lead sources — the ones CPL had crowned as most efficient — had by far the worst close rates, so a large share of those leads never converted into a paid job at all. Meanwhile, sources that looked more expensive per lead converted far better and produced substantially more booked revenue for each dollar spent, yet they had been steadily under-invested precisely because their CPL looked worse. By optimizing the cheapest possible lead rather than the most productive one, the company had been quietly steering budget toward volume that didn’t book, leaving significant booked revenue unrealised on the channels that actually worked.
What we changed
Reallocated spend by close rate and booked revenue per dollar rather than by cost per lead, so the budget now follows the sources that actually convert into paid jobs.
Fed source-level close data straight back into bidding and budgeting, closing the loop between marketing spend and the revenue it ultimately books.
Retired cost-per-lead as the headline KPI in favor of revenue per dollar, aligning the metric the team optimizes with the outcome the business genuinely needs.
Rebalanced budget toward the higher-converting sources that had been starved despite quietly producing the most booked work.
The result
Booked revenue per dollar rose 27% by buying leads that actually convert into jobs. Any services operator will recognize the trap: cheap leads made the dashboard look efficient while revenue flatlined, because CPL says nothing about who books. If you steer budget by cost-per-lead, your cheapest source may close worst and quietly starve the channels that pay. Only joining source to booked revenue reveals it — the closed loop most teams never build. A fixed-fee audit assembles it in days and points your budget at booked work, not vanity volume.
From kickoff to signed-off findings: 5 days — inside our fixed 5–7 day window.
This +27% revenue/$ spent gain is ≈$47k/yr at the client’s revenue scale.