Rounding comparison
See the difference between rounding every line and rounding one combined amount.
Round each line
$0.03- Round the combined basis
- $0.02
- Line method minus total method
- $0.01
- Combined basis
- $0.15
Illustrative calculation · AUD where amounts are shown.
| Line | Basis AUD | Unrounded commission AUD | Rounded commission AUD |
|---|---|---|---|
| 1 | $0.05 | 0.005000 | $0.01 |
| 2 | $0.05 | 0.005000 | $0.01 |
| 3 | $0.05 | 0.005000 | $0.01 |
See how the number is made.
Both methods use nearest-cent rounding with exact half cents rounded away from zero. The result lists every rounded line. This explains why two systems using the same basis and rate can differ; it does not silently switch the workspace rounding policy.
The working
Line method = sum of each rounded commission. Total method = round(sum of bases × rate).
Three $0.05 lines at 10% each round to $0.01, totalling $0.03. Their $0.15 total at 10% rounds to $0.02.
- AUD. Monetary results use nearest-cent rounding; exact half cents round away from zero.
- 3 lines at 10%. The unrounded amounts are shown to six decimal places, calculated exactly from cents and basis points.
Use the calculation basis and rules you have agreed. A tool result is a working record; it does not establish an entitlement or send a payment.