THE NUMBERS, EXPLAINED
How to use this calculator.
Positive discrepancy means expected rows are missing at destination; negative means extra destination rows. Counts are from aligned snapshots.
Start with your inputs
Enter source row counts by batch, destination row counts by batch, accepted excluded rows by batch. Keep amounts in the units shown on each field. The example is a starting point, not a recommended value.
| Input | Example value |
|---|---|
| Source row counts by batch | 100,200 |
| Destination row counts by batch | 90,190 |
| Accepted excluded rows by batch | 10,5 |
A worked example
With the example inputs above, unexplained differences by batch (rows) is 0, 5. Change the inputs to explore your own scenario.
| Result | Example answer |
|---|---|
| Unexplained differences by batch (rows) | 0, 5 |
| Net unexplained difference (rows) | 5 |
| Total absolute discrepancy (rows) | 5 |
How this is calculated
Unexplained differences by batch (rows)
Subtract accepted exclusions and destination rows from each source count.
Net unexplained difference (rows)
Sum signed discrepancies.
Total absolute discrepancy (rows)
Add absolute differences so opposite discrepancies do not cancel.
Symbols and units
- a
- Source row counts by batch
- b
- Destination row counts by batch
- c
- Accepted excluded rows by batch
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
Positive discrepancy means expected rows are missing at destination; negative means extra destination rows. Counts are from aligned snapshots.
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?
Unexplained differences by batch (rows); Net unexplained difference (rows); Total absolute discrepancy (rows). 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: Positive discrepancy means expected rows are missing at destination; negative means extra destination rows. Counts are from aligned snapshots.
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 Prealgebra 2e — arithmetic and proportions ↗
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 →