Gemsmakers · Antique Dealer Tools
Antique Mall Booth Rent Break-Even Calculator
Use this break-even calculator before renting or renewing an antique-mall booth. It estimates the monthly revenue needed to cover fixed costs after variable selling costs, then translates that number into transactions and a daily target. The three revenue scenarios help you see how a slower or stronger month may affect cash flow.
Calculator
Enter your figures below. Results update from the assumptions you supply; check your agreement, fee schedule, and local requirements before making a decision.
How to use this tool
- Enter monthly booth rent and any other fixed costs that remain due even when sales are slow.
- Enter the mall commission, card-processing fee, and cost of inventory as percentages of sales. Use the inventory cost ratio that reflects the stock sold, not the total value of everything on display.
- Enter your average transaction value, expected monthly sales, and the number of days you normally trade. Choose the currency used for all money inputs.
- Review break-even revenue, the number of transactions needed, daily targets, and the conservative, expected, and optimistic projections.
Calculation method
Contribution margin = 100% − mall commission rate − processing rate − inventory cost rate. Break-even sales = monthly fixed costs ÷ contribution margin. Required transactions are rounded up because a fraction of a sale cannot cover the bill.
Worked example
Illustration: with 900 of monthly fixed costs and a 55% contribution margin, break-even revenue is 1,636.36. At an average ticket of 45, that is 37 transactions per month after rounding up. Your actual result changes with fees, merchandise margin, and trading days.
Important assumptions and limitations
- Do not treat sales tax collected for a tax authority as your sales revenue. Enter sales before sales tax if your accounting separates it.
- Inventory cost percentage should approximate the cost of goods actually sold; it is not the same as the value of all unsold inventory.
- A break-even estimate does not predict demand. Compare it with sales history and leave room for seasonal variation.
Frequently asked questions
Does break-even mean I will make a profit?
No. At break-even, contribution after variable costs exactly covers the fixed costs entered, leaving roughly zero operating profit before any omitted expenses.
How do I estimate inventory cost percentage?
For a period, divide the acquisition cost of items sold by sales revenue for those same items, then multiply by 100. Avoid mixing unsold stock purchases into cost of goods sold.
Should I include mall commission in fixed costs?
No. If it is charged as a percentage of sales, enter it as a variable fee. Enter fixed monthly rent under fixed costs.
Why are required transactions rounded up?
Because the final partial transaction cannot usually be assumed. Rounding upward gives a practical minimum count.
Can I use this before signing a booth lease?
Yes, as a planning model. Use written fee terms and realistic sales assumptions, then compare the result with your available cash reserve.
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