THE NUMBERS, EXPLAINED
How to use this calculator.
Rework maximum is user supplied for this product and process. Final blend includes fresh batch plus added rework; no suitability or safety determination.
Start with your inputs
Enter fresh batch mass (kg), available rework mass (kg), supplied maximum rework fraction of final blend (%). Keep amounts in the units shown on each field. The example is a starting point, not a recommended value.
| Input | Example value |
|---|---|
| Fresh batch mass (kg) | 80 |
| Available rework mass (kg) | 30 |
| Supplied maximum rework fraction of final blend (%) | 20 |
A worked example
With the example inputs above, maximum rework allowed by fraction (kg) is 20. Change the inputs to explore your own scenario.
| Result | Example answer |
|---|---|
| Maximum rework allowed by fraction (kg) | 20 |
| Rework to allocate (kg) | 20 |
| Rework remaining (kg) | 10 |
| Final blend mass (kg) | 100 |
How this is calculated
Maximum rework allowed by fraction (kg)
Solve rework divided by fresh-plus-rework less than or equal to the supplied fraction.
Rework to allocate (kg)
Use the smaller of available rework and fraction-based maximum.
Rework remaining (kg)
Subtract permitted allocation from stock.
Final blend mass (kg)
Add allocated rework to fresh batch.
Symbols and units
- a
- Fresh batch mass (kg)
- b
- Available rework mass (kg)
- c
- Supplied maximum rework fraction of final blend (%)
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
Rework maximum is user supplied for this product and process. Final blend includes fresh batch plus added rework; no suitability or safety determination.
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?
Maximum rework allowed by fraction (kg); Rework to allocate (kg); Rework remaining (kg); Final blend mass (kg). 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: Rework maximum is user supplied for this product and process. Final blend includes fresh batch plus added rework; no suitability or safety determination.
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.
Read the quality report →