Key Metrics
Understanding what each metric means.
Performance Metrics
CTR (Click-Through Rate)
Percentage of impressions that resulted in clicks.
Formula: (Clicks / Impressions) × 100
CPA (Cost Per Acquisition)
Average cost to acquire one conversion.
Formula: Total Spend / Conversions
ROAS (Return on Ad Spend)
Revenue generated per dollar spent.
Formula: Revenue / Ad Spend
Conversion Rate
Percentage of clicks that converted.
Formula: (Conversions / Clicks) × 100
Benchmarks
Industry averages vary, but general guidelines:
- CTR: 2-5% (Search), 0.5-1% (Display)
- CPA: Depends on industry/product value
- ROAS: 4x+ is typically profitable
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