The Marketing ROI Analyzer

Analyse the return on my marketing spend and where to shift it.

Spend by channel/campaign: [PASTE]
Results by channel: [LEADS, CONVERSIONS, REVENUE, IF AVAILABLE]
Customer economics: [CAC TARGET, LTV, MARGIN]

Provide:
1. The cost per lead / acquisition and ROI by channel
2. Which channels are winning, which are wasting money
3. The attribution caveats (what these numbers can and can't prove)
4. Where to shift budget for better return
5. What to measure better to decide with more confidence

Be honest about attribution limits — don't over-claim precision the data
can't support.