THE NUMBERS, EXPLAINED
How to use this calculator.
Equivalence is based only on like-for-like measured content, as approved by the user. Does not establish recipe, allergen or quality interchangeability.
Start with your inputs
Enter original ordered packs, original pack content (g), substitute packs delivered, substitute pack content (g), original price per pack (currency), substitute price per pack (currency). Keep amounts in the units shown on each field. The example is a starting point, not a recommended value.
| Input | Example value |
|---|---|
| Original ordered packs | 10 |
| Original pack content (g) | 500 |
| Substitute packs delivered | 12 |
| Substitute pack content (g) | 400 |
| Original price per pack (currency) | 3 |
| Substitute price per pack (currency) | 2.5 |
A worked example
With the example inputs above, delivered original-pack equivalents is 9.6. Change the inputs to explore your own scenario.
| Result | Example answer |
|---|---|
| Delivered original-pack equivalents | 9.6 |
| Content shortfall (g) | 200 |
| Invoice value change (currency) | 0 |
How this is calculated
Delivered original-pack equivalents
Convert substitute total content to original-pack size.
Content shortfall (g)
Compare original and substitute total content.
Invoice value change (currency)
Subtract original order value from substitute value.
Symbols and units
- a
- Original ordered packs
- b
- Original pack content (g)
- c
- Substitute packs delivered
- d
- Substitute pack content (g)
- e
- Original price per pack (currency)
- f
- Substitute price per pack (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
Equivalence is based only on like-for-like measured content, as approved by the user. Does not establish recipe, allergen or quality interchangeability.
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?
Delivered original-pack equivalents; Content shortfall (g); Invoice value change (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: Equivalence is based only on like-for-like measured content, as approved by the user. Does not establish recipe, allergen or quality interchangeability.
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 →