Gemsmakers · Antique Dealer Tools
Antique Booth Sales per Square Foot Tracker
A booth can look full without earning enough per square foot. This tracker compares sales density and net profit density across several periods using the same booth footprint. It can help you assess a layout change or whether extra space is producing enough additional revenue to justify its cost.
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 the booth’s length and width in one consistent unit. The area calculation will be in square feet only when you enter measurements in feet.
- Enter the area occupied by non-selling space such as walkways or storage. The remainder is treated as usable display area.
- Enter one period per line using: Period | gross sales | total costs. Total costs should include inventory cost and operating expenses for that period.
- Compare sales per square foot and net profit per square foot, plus the change from the previous period.
Calculation method
Total booth area = length × width. Usable display area = total area − non-selling area. Sales density = period sales ÷ chosen area. Net profit = sales − entered total costs; net profit density = net profit ÷ usable area.
Worked example
For a 10 ft × 8 ft booth, total area is 80 sq ft. If 12 sq ft is reserved for a path and storage, selling area is 68 sq ft. Monthly sales of 2,040 equal 25.50 per total sq ft, or 30.00 per usable sq ft.
Important assumptions and limitations
- Keep measuring units consistent; entering metres while interpreting the output as square feet will distort results.
- Period costs need a consistent definition, especially inventory cost, discounts, commission, and labour.
- One strong month does not automatically justify expansion; compare several comparable periods and seasonality.
Frequently asked questions
Should I divide by total or usable area?
Use total area to judge rent productivity and usable display area to judge the efficiency of space actually available for selling. The tracker reports both.
What belongs in total costs?
Use the same accounting basis each period: cost of items sold plus rent, mall commission, payment fees, transport, and other period costs relevant to your decision.
Can this tell me whether to expand?
It provides useful evidence, but compare the incremental rent and sales expected from the extra area before deciding.
Why are costs subtracted from sales?
This produces a simple period net contribution estimate. Include all material costs consistently for a more meaningful measure.
Can I enter weekly periods?
Yes. The period label is free text, so you can use weeks, months, seasons, or other consistent intervals.
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