Marketing meets operations

Your leads are only
the beginning.

Before I recommend more advertising, I want to know what happens after someone responds. Your follow-up, scheduling and sales process all affect what your marketing can earn.

Follow one group from inquiry to customer.

Follow one group of leads long enough to see who buys—for example, inquiries generated in one month, followed until their usual sales window closes. Do not mix this month’s new inquiries with sales from older leads. The starting numbers are illustrative.

For appointment-based businesses · No signup required

Four different outcomes. Four different management questions.

InquiryDid someone respond?QualifiedAre they a fit?Appointment heldDid the conversation happen?CustomerDid they buy?

Media spend for this cohort ($)Ad spend that generated these inquiries. Agency fees, creative and team costs are excluded here.Unique inquiriesDeduplicated inquiries from that spend. Exclude spam and repeat contacts from the same prospect.Qualified leadsOf those inquiries, how many met your service, location and customer-fit criteria?Held appointmentsOf those qualified leads, how many completed an appointment? Do not count bookings or no-shows.New paying customersOf those held appointments, how many became first-time paying customers? Use one sales window.Contribution per new customer ($)Revenue less variable delivery and selling costs, before media and remaining overhead. Use realized value, not speculative lifetime value.

Optional: compare with your own plan

Leave these blank if you have not set a target. These are your business limits, not industry benchmarks.

Maximum media-only CAC ($)Your acceptable ad spend per new customer. Leave room for agency fees, creative, team costs, remaining overhead and your desired surplus. Use observed customer contribution and an affordable payback period.

Your inputs stay in this browser and are not submitted or saved by this site. Use counts, not customer names. If your sales process skips appointments, use the marketing efficiency calculator.

Illustrative example / one lead cohort

Amount left after costs and advertising

$6,000.00

This is your contribution after media: customer revenue less variable delivery and selling costs, then ad spend. Remaining marketing costs and fixed overhead still need to be covered.

Compared with your inputs

Colors describe the figures entered and your chosen targets. They do not grade your whole business or compare it with an industry average.

Contribution after media

Yellow · Remaining costs to cover

This example leaves contribution after media, but agency fees, creative, team costs and remaining overhead still need to be covered. Check those before deciding to scale.

Media-only acquisition cost

Set your CAC ceiling

Choose the acquisition cost you can support from observed customer contribution and the time you can afford to wait for payback. An industry average cannot set that limit for you.

Media-only CAC: $400.00Ad spend ÷ new paying customers
Cost per inquiry · CPL: $30.00Ad spend ÷ unique inquiries
Inquiry-to-customer conversion: 7.5%One cohort, through its sales window
Contribution ceiling per inquiry: $60.00Before remaining overhead; not a budget recommendation
Cost per qualified lead: $60.00
Cost per held appointment: $100.00

Your cohort at each stage. Bar lengths show the share of original inquiries; labels show conversion from the previous stage.

Unique inquiries200

Qualified · 50%100

Appointments held · 60%60

New customers · 25%15

At this conversion rate, $60.00 of media per inquiry consumes all $800.00 of contribution per customer. Your allowable CPL must be lower to cover remaining costs and your profit requirement.

Find the step your team can improve.

01 / Qualification

Make “qualified” mean something.

Agree on service area, need, fit and eligibility before you compare sources. Review rejected inquiries by reason. An ad attracting the wrong job type needs a different fix from a good inquiry your team cannot reach.

02 / Appointments

Check the handoff.

Look at response time, contact attempts, booking availability and no-show reasons. Keep booked appointments and held appointments separate in your report. A full calendar is not the same as a completed sales conversation.

03 / Sales

Understand the decision.

Review lost sales by reason, salesperson, source and offer. Price, timing, financing, trust and fit are different issues. Pair your numbers with a small sample of actual conversations before deciding the team needs more leads.

Definitions, formulas and the limits of this calculator

Stage conversion: Qualified leads ÷ inquiries; held appointments ÷ qualified leads; new customers ÷ held appointments. These must be nested counts from the same group, with customers counted once. This is an appointment-based acquisition model.
Media-only CAC: A dollar amount per new customer, not a percentage. Ad spend ÷ new paying customers. It excludes agency fees, creative, software and acquisition sales and marketing labor. Use the CAC and MER calculator to include your broader acquisition cost pool.
Contribution ceiling per inquiry: Inquiry-to-customer conversion rate × contribution per customer before media. At the ceiling, all that contribution is spent on media. It leaves nothing for remaining overhead or profit and is not a recommended CPL target.
Contribution after media: New customers × contribution per customer − media spend. Contribution per customer should already deduct variable delivery and selling costs. This result is not net profit and does not measure when cash arrives.
Your CAC ceiling: Set a ceiling that leaves room for costs outside media and your desired surplus. Use observed customer contribution and the time your business can wait for payback. Below that ceiling is green for this metric only; contribution can still be negative if the ceiling is too high. Compare both signals before acting.
Zero and small samples: A stage with no starting population has no calculable conversion rate. No customers means media CAC is unavailable. Small or unfinished cohorts can produce unstable results; compare like periods and allow time for decisions.

For your next team meeting: choose one stage, one owner and one measurable change. Then check the broader marketing economics.