Calculate solution cost from actual usage.
Divide the usable ounces in the bottle by your average ounces per tan to estimate appointments per bottle. Then divide the bottle cost by that appointment count to estimate solution cost per tan.
Add the rest of the per-client supplies.
Include disposables and products that are consumed because the appointment happened. Common examples can include garments, foot protection, barrier products, prep products, finishing powder and laundry or liner costs when you track them per service.
Keep fixed expenses separate when the goal is service cost.
Rent and software matter to profitability, but they do not usually change because one additional client booked. Keeping variable service cost separate makes it easier to use the number across different appointment volumes.
Update the estimate when your process changes.
A new solution, equipment adjustment or technique change can alter product usage. Rechecking the number occasionally keeps it useful instead of treating one old estimate as permanent.
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Calculate it with your own bottle and usage numbers
The free cost-per-tan calculator turns bottle size, bottle cost, ounces used and per-client supplies into a clean appointment-level estimate.
TRY TAN CONCIERGE FOR $1Questions, answered
What artists usually want to know.
What is the basic cost-per-tan formula?
Estimate solution cost per tan, then add other variable per-client supplies. For solution, divide bottle cost by the estimated number of tans you get from that bottle.
Should labor be included?
That depends on what you are trying to measure. For a simple variable supply-cost calculation, keep labor separate. For a fuller service profitability model, include the labor cost or owner compensation target elsewhere in the pricing model.
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