Cost per booked call — and what it becomes when they don’t show.
Updated
Cost per booked-and-attended call is everything you spent to fill the seat, divided by the number of people who booked and then actually turned up. It is not cost per lead, not cost per registration and not cost per booking — each of those counts people who never appeared. What separates the two numbers is your show-up rate, and it divides: at a 25% show-up rate an attendee costs four times what a registration costs, and at 12% about eight times. It is also the unit the appointment market already trades in publicly, which means you can find out what other people pay for the same outcome.
“Cost per booked call dropped from 900 to 116 dollars” — what actually moves that number?
That line, and “$899 spent, $57 cost per booked call”beside it, are the only two real cost-per-booked-call figures our own research surfaced anywhere — both in r/FacebookAds, which turned out to be the one room where operators post the number at all. Neither carries a method, a time window or a sample, and neither permalink was captured, so they are two anonymous operator self-reports and nothing more.
What they are still worth reading for is the spread. A near-eightfold swing inside one account’s own reported number is not a benchmark anyone can plan against. It is evidence that the number moves for several reasons at once, most of which have nothing to do with reminders.
| Lever | What it does to the number | Whose job |
|---|---|---|
| Traffic quality and targeting | The largest mover in every reported figure we found, and the only one that can flatter and ruin the number at the same time | Yours, with whoever buys your media |
| Registration friction — a phone number, a qualifying question, a fee | Raises cost per registration and usually raises show-up rate. The two move in opposite directions, which is why one of them alone tells you nothing | Yours |
| Show-up rate | Divides everything downstream. At 50% an attendee costs twice a registration; at 25%, four times; at 12%, about eight | Partly ours — this is the rung a pre-webinar call and SMS system works on |
| The offer and the presentation | Decides whether an attended call is worth anything at all, and never appears in this metric | Yours |
| What you pay anyone to work the list | Adds to the numerator. A cost-per-outcome number that excludes the cost of the thing producing the outcome is not the real number | Shared |
A falling cost per booked call is not automatically good news
Should I measure cost per registration or cost per booked-and-attended call?
Both, and never one without the other — but only one of them is an outcome. An operator put the reason more plainly than any vendor has: “registration and people who show up are completely different topics”[2]. They are two different populations, so they need two different prices, and the one you plan a business on is the second.
| Rung | Whose result is it? | What it is good for |
|---|---|---|
| Registrant treated | Entirely the supplier's — it happens whether or not a single person shows up | Usage accounting. It carries no skin in the game, in either direction |
| Registration or lead | Yours: your ad, your landing page, your offer | Diagnosing the top of the funnel. Useless as an outcome, because intent to attend is not in it |
| Booked-and-attended call | Mostly the outreach work, performed on your traffic and your offer | The one rung that is countable without argument and still genuinely influenced by outreach. This is the unit |
| Sale | Almost entirely yours — your presentation, your closing, your price | The number your bank account recognises. Nobody outside your business should be billing on it |
Add up everything you spent to fill the seat
Ad spend for that campaign, plus anything you paid a person or a service to work that list. Leaving the second half out is the most common way this number gets flattered, and a buyer spending five figures a month on ads notices immediately.
Count the people who booked and then actually turned up
Not registrations, not bookings, not replay views. If you cannot produce that count from an attendance export or a recording, you cannot plan on the number and you certainly cannot let anyone bill you on it.
Divide
Total spend over attended calls. That is your cost per booked-and-attended call for that campaign, and it is the number to write down.
Repeat across a run of campaigns before you believe it
One webinar's number is noise. The one operator who posted a before and after moved his own by a factor of nearly eight, and a single cheap month can be a traffic-quality problem rather than a win.
Only then compare it to what an attended call is worth
Cost per booked-and-attended call is meaningless on its own. It becomes a decision once you set it against the rate at which an attended call turns into a sale on your own offer — a rate no benchmark can hand you.
“a little over $10 per registrations on Meta” — what does that become per attendee?
One operator published the whole chain in a single post. He ran a webinar, deliberately made people hand over a phone number — “my little trick to create more registration friction and only get people genuinely interested”[3] — sent three reminders, got 65 registrations, and had 8 people show up.
So the registration price was a little over $10 and the attended price was a little over $80, out of the same budget, on the same day. Nothing about the spend changed. Only the denominator did. That is the entire argument for tracking the second number: the one you are usually shown is the one you divide.
One operator, self-reported, no control
“$100 per booked & attended call” — what does the market already pay for this outcome?
That phrasing is not ours. It comes from a US operator’s public hiring post — “$100 per booked & attended call (qualified leads). 10% commission on closed deals (average deal size: $3,000–$5,000).”[4] The word doing the work is attended. The buyer wrote it in himself, because he had already decided he would not pay for a booking that does not show.
He is not an outlier. Across 183 operator-written hiring posts our research extracted 42 distinct dated pay figures, and the single most common contractual unit in them is a qualified appointment, named in 35% of posts. Every rate below is a third-party market rate: what other people pay other people for this outcome. None of them is what CallHush charges.
| Unit | Rate | Who is paying whom |
|---|---|---|
| Per qualified appointment | $5–$250, clustering $50–$100 | An operator paying a setter |
| Per show specifically | $20–$50 | An operator paying a setter |
| Per booked & attended call | $100, plus 10% of closed deals on a $3,000–$5,000 average deal size | One US operator's public hiring post, 2025-09-15 |
| Per close | $50–$3,800 | An operator paying a closer |
| Per appointment, agency to client | $150–$400, rising to $400–$750 when the appointment is BANT-verified | A client paying an agency |
Notice the two rungs in that table are not the same market. A setter is labour and an agency is a supplier, so the rate a client is measured against is the $150–$400 line, not the $10–$100 one. Notice also what makes any of it billable: a practitioner in that same corpus, rebutting a client who claimed “qualified” is inherently subjective, listed the criteria his clients actually used.
- The prospect must show up.
- They must know it is a paid service.
- They must know what the service is and what problem it solves.
- They must have shown explicit interest after knowing all that.
“All calls were recorded, so it was easy to track. If a company can’t do that, that’s a system problem, not a ‘setter incentive’ problem.”
— a practitioner in r/appointmentsetter, on what makes a per-appointment deal adjudicable instead of arguable
Why we publish other people's prices and not our own
If my show-up rate goes up, what actually happens to the money?
Less than the category tells you, and the honest way to show that is to publish the arithmetic with its assumptions sitting on top of it. Below is a model, not a forecast and not a promise. Every input is visible so you can disagree with any of them.
| Modelled input or output | Conservative | Base | Optimistic |
|---|---|---|---|
| Show-up rate before | 25% | 30% | 30% |
| Show-up rate modelled | 30% | 38% | 45% |
| Marginal attendee quality (k) | 0.5 | 0.7 | 0.85 |
| Live attendees before | 125 | 150 | 150 |
| Live attendees modelled | 150 | 190 | 225 |
| Cost per booked-and-attended call, before (ad spend only) | $80.00 | $66.67 | $66.67 |
| Cost per booked-and-attended call, modelled (ad spend only) | $66.67 | $52.63 | $44.44 |
| Resulting sales multiple | 1.10× | 1.19× | 1.43× |
kis the row most models hide. It is the conversion rate of an attendee who came because you contacted them, expressed as a fraction of the conversion rate of an attendee who came on their own. It is below 1 almost by definition: the person who attends unprompted revealed higher intent by doing so, and intent predicts purchase. Nobody has ever measured k directly — no study in marketing, platform data or the academic literature reports whether reminder-induced attendees buy at the same rate. We model it at 0.7 and we never model it at 1.0.
The counterfactual in every reminder study is wrong for you
Look at the bottom row before anything else. Even in the optimistic case the sales multiple is 1.43×. And the category’s own favourite worked example — 150 attendees becoming 275 — tops out at 1.83× even if you set k to 1.0 and assume every extra attendee buys exactly as well as someone who came unprompted. That is the arithmetic ceiling, not a target. The multiplier claims in this market do not survive their own attendee counts.
One more thing that table cannot tell you: your true cost per booked-and-attended call includes what you pay whoever works the list, and this page does not publish our fee for it. That is deliberate and it is not evasion — you get the number the moment you ask on the call, and we run the arithmetic above on your real spend, your real show-up rate and your real offer price while you watch.
Frequently asked questions
Everything you spent to fill the seat — ad spend plus anything you paid a person or a service to work that list — divided by the number of people who booked and then actually turned up. It is the same funnel as cost per lead, measured one rung further down, and the gap between the two is your show-up rate.
No, and treating them as interchangeable is where most funnel maths goes wrong. Cost per lead and cost per registration both count people who never appeared. At a 25% show-up rate an attendee costs four times a registration out of the same budget; at 12%, about eight times. One operator reported a little over $10 per registration on Meta and 8 attendees out of 65, which put his attended cost a little over $80 with no change in spend at all.
Usually because something upstream moved, not because your reminders stopped working. Traffic quality and targeting are the largest movers in every figure we could find; registration friction pushes cost per registration up while pushing show-up rate up with it; and a falling show-up rate multiplies straight through to the attended number. Before you buy anything, work out which of the four is actually moving, because a reminder layer only touches one of them.
In 183 operator-written hiring posts our research extracted 42 distinct dated pay figures: per qualified appointment $5–$250 clustering at $50–$100, per show specifically $20–$50, and per close $50–$3,800. Agencies charging a client rather than paying a setter sit at $150–$400 per appointment, or $400–$750 when the appointment is BANT-verified. Those are third-party market rates for context, not CallHush's price.
That number is not published on this page or anywhere else on this site, and it is not in the market rates above either. You get it on the call, in the sentence after you ask — no range, no it-depends, and not after we have heard your ad spend. The shape is a base fee plus a rate per qualified appointment that shows up, and the pricing page explains what each part covers and what goes in the contract.
On shows, if you want the incentive boundary to hold. Pay should be tied to what the supplier controls, and nobody outside your business controls your presentation, your closing or your price. Billing on attended calls respects that boundary; billing on closes charges you for work someone else did. Whichever you pick, put a written definition of an attended call in the contract and record the calls — the market's own definition is that the prospect showed up, knew it was a paid service, knew what it solves, and had shown explicit interest.
You run a webinar. We come in and increase your show-up rate and your post-webinar sales, with our AI voice and SMS system — and you finally know why every registrant signed up, because the agent asks and the answers come back in their own words. If you want the arithmetic on this page run on your own numbers, the calculator does exactly that with the assumptions written out beside it, or book a call. If you would rather keep reading: the denominator in every sum above is unpacked in webinar show-up rate by traffic source, and what to do with the people who never turned up is in webinar no-show follow-up.
Founder & Operator, CallHush
Founder and operator of CallHush. The offer is one sentence: you run a webinar, and we increase your show-up rate and your post-webinar sales with an AI voice and SMS system. CallHush has no closed clients yet — the first engagement is a pilot run as a split of the client’s own registrant list, and nothing on this site is presented as a client result.
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