1. Incremental Impact
Counterfactual / Interrupted Time Series
How many extra sales did the campaign actually cause?
Why it matters: This is THE number for your board: incremental revenue you can attribute to the campaign, not the flattering raw total. It’s the basis of a real ROI.
How to read it: We show actual vs. the predicted campaign-free line. The shaded gap during your campaign window is the incremental impact. Bigger gap, bigger effect.