Coach note
Interviewers ask this kind of question to surface how you think, not what you remember. The strongest answers are specific, calmly told, and end on what changed.
Performance marketing math · Channel Level ROI
Your TikTok ads delivered 200 conversions at $2,000 spend while your email campaign delivered 150 conversions at $300 spend. Walk me through which has better CAC and CPA.
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