Period comparison
Compare sales, refund magnitudes and commission across two defined date ranges.
Net sales change
$1,250.00- Net sales change %
- 11.90%
- Commission change
- $500.00
- Period lengths
- 7 / 7 days
Illustrative calculation · AUD where amounts are shown.
| Measure | Earlier AUD | Later AUD | Change AUD | Change % |
|---|---|---|---|---|
| Sales before refunds | $11,000.00 | $12,000.00 | $1,000.00 | 9.09% |
| Refund magnitude | $500.00 | $250.00 | -$250.00 | -50.00% |
| Net sales | $10,500.00 | $11,750.00 | $1,250.00 | 11.90% |
| Commission | $4,200.00 | $4,700.00 | $500.00 | 11.90% |
| Net sales per calendar day | $1,500.00 | $1,678.57 | $178.57 | 11.90% |
See how the number is made.
Use the same tax and category definitions in both periods. Commission is entered from each period’s record, not inferred from a new rate. Inclusive day counts and net sales per day make different-length periods visible. Percentage change is unavailable when the earlier amount is zero.
The working
Net sales = sales − refund magnitude. Change = later − earlier. Percentage change = change ÷ |earlier| × 100.
Net sales move from $10,500.00 to $11,750.00: a $1,250.00 increase, or 11.90%. Both sample periods contain seven days.
- Earlier: 2026-09-14 to 2026-09-20. Later: 2026-09-21 to 2026-09-27. Both boundaries count.
- Percentage change uses the absolute earlier amount as its denominator. It is unavailable when that amount is zero.
- Refund inputs are positive magnitudes; commission inputs are signed recorded totals. Keep the source and tax definitions consistent.
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.