Blended Cost Per Save: Measure Ad Bookmark Efficiency

Blended Cost Per Save measures the average cost to generate one save or bookmark of your ads. Meta is the only platform that reports saves, so only Meta spend counts.

Formula

Blended Cost Per Save = Meta Spend ÷ Blended Saves

Formula Components

Metric	Definition
Meta Spend	Spend from your Meta ad accounts. Google Ads and TikTok spend are left out
Blended Saves	Saves and bookmarks of your ads, as Meta reports them

Metadata
Type	Currency
Data Source	Meta Ads
Aggregation	Ratio

Example

Your campaigns ran on all three platforms this month:

Platform	Spend	Saves	Counted in this metric
Meta	$4,250	1,523	Yes
TikTok	$2,975	Not reported	No
Google	$1,275	Not reported	No
Blended Cost Per Save	$4,250	1,523	$2.79

Dividing Blended Spend ($8,500) by Meta’s 1,523 saves would give $5.58, about twice the real cost.

How It Works

Upstack divides Meta spend by the saves Meta reports. Google Ads and TikTok don’t report saves, so their spend is left out. In the app the formula reads Meta Spend ÷ Saves. Saves often signal purchase consideration, so a falling cost per save can point to creative worth revisiting.

When to Use

Scenario	Action
Evaluating content resonance	A lower cost per save points to ads people want to come back to
Purchase intent signals	Saves often come before conversions, so track their cost
Creative optimization	Find which creatives drive saves most cheaply

Metric	Relationship
Meta Spend	Numerator
Blended Saves	Denominator
Blended Cost Per Engagement	Broader engagement cost, on all spend

See all Blended Engagement metrics →

​Formula

​Formula Components

​Example

​How It Works

​When to Use

​Related Metrics

Formula

Formula Components

Example

How It Works

When to Use

Related Metrics