The Allowable Cost per Appointment Calculator.

How the allowable actually works.

Gross profit per client = revenue per client × gross margin Breakeven cost per attended appointment = gross profit per client × close rate Breakeven cost per booked appointment = that × show rate Target = breakeven × the share of gross profit you will spend

The whole calculation is four multiplications, and the reason most businesses never do it is that the four inputs live in four places: revenue in the payment processor, margin in the books, close rate in the CRM, show rate in the calendar. Bring them together once and every cost figure the ad platform shows you has something to be judged against.

A made-up example, to show the shape. A business collects $12,000 per new client at a 45% gross margin before marketing, so a new client leaves $5,400 behind. One in four attended appointments becomes a client, so an attended appointment is worth $1,350 at breakeven. Seven in ten bookings attend, so a booked appointment is worth $945 at breakeven. If the owner will spend 30% of gross profit to win a client, the target is $283.50 per booked appointment. If one in four leads books, the target cost per lead is about $71. None of those figures are yours; the arithmetic is.

Why a cost per appointment copied from another account is a number without a unit.

Cost-per-appointment ranges circulate for every industry. They are sanity checks at best. A $250 appointment is expensive for a business that collects $4,000 per client at a thin margin and cheap for one that collects $25,000. The number only means something next to your own revenue per client, margin, close rate and show rate, which is why the calculator derives the line instead of quoting one.

The same rule applies to any target a vendor hands you. If they did not ask for your close rate and your margin in the first month, the target they set is a guess dressed as a benchmark. The Lead-Gen Vendor Audit Checklist has that question near the top.

Two lines, not one.

The calculator prints a breakeven line and a target line because they answer different questions. The target is what the ad account has to clear: the number to hand to whoever runs your ads, judged over a full judging window rather than a good week. The breakeven line is where scaling has to stop: above it, a booked appointment costs more than it can return before a single hour of work is delivered.

Between the two you are trading margin for volume. That can be the right call while the sales team has open capacity and the business is buying share, and the wrong call the month the calendar fills. Which is why the next tool is not about cost at all. The Appointment Capacity Ceiling Calculator turns the team's calendar into a maximum useful budget.

What the allowable does not tell you.

It cannot tell you whether the appointments you are buying are the right ones. A cheap booked appointment with the wrong person still costs an attended slot. That is the qualified-rate question, and it sits in the Appointment Engine Scorecard beside the four other numbers that decide whether to scale, hold, fix or pause.