THE NUMBERS, EXPLAINED
How to use this calculator.
Transaction capture can exceed 100% when visitors purchase repeatedly; it is not a unique-buyer conversion rate.
Start with your inputs
Enter attraction visitors, gift-shop transactions, gift-shop receipts (currency), gift-shop goods cost (currency). Keep amounts in the units shown on each field. The example is a starting point, not a recommended value.
| Input | Example value |
|---|---|
| Attraction visitors | 1000 |
| Gift-shop transactions | 200 |
| Gift-shop receipts (currency) | 3000 |
| Gift-shop goods cost (currency) | 1200 |
A worked example
With the example inputs above, transactions per visitor (%) is 20. Change the inputs to explore your own scenario.
| Result | Example answer |
|---|---|
| Transactions per visitor (%) | 20 |
| Average basket (currency) | 15 |
| Sales per visitor (currency) | 3 |
| Goods contribution per visitor (currency) | 1.8 |
How this is calculated
Transactions per visitor (%)
Divide shop transactions by attraction visits.
Average basket (currency)
Divide sales receipts by transactions.
Sales per visitor (currency)
Normalize gift-shop sales by attraction attendance.
Goods contribution per visitor (currency)
Deduct goods cost before dividing by visitors.
Symbols and units
- a
- Attraction visitors
- b
- Gift-shop transactions
- c
- Gift-shop receipts (currency)
- d
- Gift-shop goods cost (currency)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions and limits
Transaction capture can exceed 100% when visitors purchase repeatedly; it is not a unique-buyer conversion rate.
Calculations use the values you enter. Blank or invalid inputs show an error instead of silently substituting zero. Results are displayed to useful precision; calculations retain the underlying numeric precision.
Questions about this tool
What does the result tell me?
Transactions per visitor (%); Average basket (currency); Sales per visitor (currency); Goods contribution per visitor (currency). The result applies to the method and inputs described above. Check the units and assumptions before using it in a decision.
Why might another calculator differ?
Differences in units, rounding, timing or model definitions can produce different answers. Compare the input definitions and the method, rather than only the final number. For this tool: Transaction capture can exceed 100% when visitors purchase repeatedly; it is not a unique-buyer conversion rate.
Are my inputs stored or sent to AI?
Calculations on this page happen in your browser. The separate AI question finder sends its submitted conversation to OpenAI; these calculator fields are not sent. Favourites and recent tool names are stored locally. A shared link contains the inputs you choose to include.
Further reading
OpenStax: Describe and Identify Cost Drivers ↗
Background reading; this does not imply endorsement or independent review of SumFizz.
Review status
Software example and browser checks are recorded in our quality report. No external expert review is claimed. Created with coding assistance; calculations run as ordinary browser code.
Read the quality report →