The decision
Are the promotion and benchmark windows comparable?
Source inputs
| Campaign / product | Expected baseline units | Promotion units | Regular / promotion price | Variable unit cost |
|---|---|---|---|---|
| Example home refill Synthetic seven-day event | 700 | 1,000 | €20 / €18 | €8 |
What to inspect
Open a row’s full contribution bridge, check the day-window alignment and cost allocation, then vary the expected baseline and response in Scenario studio. The portfolio result includes the recorded refunds, supplier support and displacement; unrecorded effects remain excluded.
Read the accompanying decision guide
Interpretation limits
The figures are generated from the same deterministic engine used by the workbench. They are not evidence from a merchant or a randomized test. A supplied baseline can make an offer look attractive or unattractive, so the baseline deserves the same scrutiny as the campaign’s realized sales.
How to read this case
2,800 source units over 28 days become a 700-unit seven-day benchmark. The contribution difference is +€1,400.
Case-specific assumptions
- The day-count adjustment is arithmetic normalization, not a seasonality or availability adjustment.
- Replace the benchmark with an externally adjusted forecast when source days are not comparable.