Marketing metric

Blended ROAS (MER)

Store net revenue divided by total ad spend, also called the marketing efficiency ratio.

Updated 9 October 2026Open in Marginful

On this page

Store net revenue divided by total ad spend, also called the marketing efficiency ratio.

Blended ROAS = Net revenue ÷ Ad spend

How it is calculated

  • Counts all revenue, including orders that did not come from ads.

Reading it

  • Format: Ratio (shown as ×).
  • Higher is better (an increase is shown in green).

Where it appears

  • Overview and Dashboards — add it from the metric picker (Marketing group).
  • Settings → Targets — set a target and get an alert when you miss it. See targets.

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Blended ROAS (MER) · Marginful Docs