Lailara Lift Math

Event Anatomy

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PRE-0057

WALMART · CHP-PS-002 · TPR_shallow · 12.29% off · 1 week · 2024-09-28 to 2024-09-28 · off_invoice

Where the promoted volume came from

Units over the promo weeks, Method 0 baseline. The middle bar is volume that would have sold anyway; only the last bar is what the estimator credits to the promo.

1,413Gross promoted1,068− Subsidized baseline345= Net incremental

Gross promoted volume minus the subsidized baseline the estimator would have expected leaves net incremental lift. Dip (pantry-load) and transfer (cannibalization) are not shown — these methods don't yet estimate them; both are estimable from observed data and arrive as their own bars in a later release.

Net incremental margin
$758
Accrued trade cost
$964
Return on spend
0.79×
Giveaway share
74%

Giveaway share is measured over complying stores only, while the bars show all promoted volume — so dividing the two bars above will not reproduce it exactly.

How wrong is this estimate? The error against known truth lives in the accuracy view — never on this page. →