THE NUMBERS, EXPLAINED
How to use this calculator.
Commission applies to food revenue only; packaging, food cost and fixed channel fees are subtracted. Taxes, tips and unlisted labour are excluded.
Start with your inputs
Enter orders by sales channel, average food revenue per order by channel, commission by channel (%), packaging cost per order by channel, food cost per order by channel, fixed channel fees. Keep amounts in the units shown on each field. The example is a starting point, not a recommended value.
| Input | Example value |
|---|---|
| Orders by sales channel | 100,50 |
| Average food revenue per order by channel | 20,25 |
| Commission by channel (%) | 0,20 |
| Packaging cost per order by channel | 1,2 |
| Food cost per order by channel | 8,10 |
| Fixed channel fees | 0,50 |
A worked example
With the example inputs above, net contribution by channel is 1100, 350. Change the inputs to explore your own scenario.
| Result | Example answer |
|---|---|
| Net contribution by channel | 1100, 350 |
| Total net contribution | 1,450 |
| Gross revenue by channel | 2000, 1250 |
How this is calculated
Net contribution by channel
For each channel subtract commission and per-order variable costs, then fixed fees.
Total net contribution
Sum channel contributions.
Gross revenue by channel
Multiply channel order count by average order revenue.
Symbols and units
- a
- Orders by sales channel
- b
- Average food revenue per order by channel
- c
- Commission by channel (%)
- d
- Packaging cost per order by channel
- e
- Food cost per order by channel
- g
- Fixed channel fees
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
Commission applies to food revenue only; packaging, food cost and fixed channel fees are subtracted. Taxes, tips and unlisted labour are excluded.
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?
Net contribution by channel; Total net contribution; Gross revenue by channel. 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: Commission applies to food revenue only; packaging, food cost and fixed channel fees are subtracted. Taxes, tips and unlisted labour are excluded.
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: Solve proportions and their applications ↗
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.
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