Wellness studio business
Class pack breakage.
Enter the pack price, size and the share of classes that expire unused. See the real price per class used, the breakage revenue and what it adds up to each month.
Effective price per used class = pack price / (classes x (1 - breakage)). A $200 pack of 10 is $20 a class on paper. If 15% of classes expire unused, 8.5 are used and the real price is $23.53 a class. The studio keeps $30 of breakage per pack.
Your numbers
Result
Worked example
A $200 pack of 10 classes is $20 a class on paper, a 20% discount on a $25 drop-in. If 15% of the classes expire unused, buyers use 8.5 classes, so the price per class used is $200 / 8.5 = $23.53, a 5.88% discount. The studio keeps 15% x $200 = $30 of breakage per pack. Delivering 8.5 classes at $4 each costs $34, so profit is $166 per pack. Selling 30 packs a month gives $900 of breakage, $4,980 profit and 255 filled spots.
How it works
Classes used = pack size x (1 - breakage %). Effective price = pack price / classes used. Breakage revenue = pack price x breakage %.
Get your breakage from your own data: for packs that have expired, divide classes unused by classes sold. Packs still running do not count yet.
This is a pricing view, not accounting advice. How and when to record revenue from expired or unused prepaid classes depends on your accounting rules and local law, so ask your accountant. For the discount side of packs, see the Service Package Discount Calculator.
Sources and basis (checked 2026-10-08): arithmetic on the numbers you enter. No outside data or published rate is used, so every default is a placeholder to replace with your own. This is a planning estimate, not accounting, legal or tax advice.
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FAQ
What is breakage on a class pack?
Breakage is the share of prepaid classes that are never used before the pack expires. The studio has been paid for those classes without delivering them.
How do I find my class pack breakage rate?
Look at packs that have already expired. Add up the unused classes and divide by the classes sold in those packs.
Should I count breakage as profit when I set the pack price?
Treat it as an estimate, not a guarantee. It changes with expiry length, reminders and how easy booking is, so price the pack so it still works at low breakage.
Does a longer expiry change breakage?
Usually yes, a longer expiry tends to lower breakage, but that depends on your clients. Measure it before and after any change.