How do I calculate Black Friday ROI?
Muhammed Tüfekyapan
Founder & CEO
TL;DR - Quick Answer
Complete Expert Analysis
How Do I Calculate Black Friday ROI?
True Black Friday ROI requires accounting for every cost associated with the event - not just revenue vs. ad spend. Stores regularly overestimate ROI by excluding discount value given, extra fulfillment costs, and staff overtime. A rigorous calculation often reveals ROI is 30-50% lower than the simple revenue/ad spend ratio suggests.
Full BF ROI Calculation
| Item | Example |
|---|---|
| Gross revenue | +$50,000 |
| - COGS | -$20,000 |
| - Discount value (15% avg) | -$7,500 |
| - Ad spend | -$5,000 |
| - Fulfillment extra cost | -$1,500 |
| - Returns (est. 10%) | -$2,000 |
| = Net profit | $14,000 |
| Total investment (non-COGS) | $16,000 |
ROI = ($14,000 - $16,000) / $16,000 = -12.5% — or break-even if LTV is factored in
Note: Factoring in the 12-month LTV of newly acquired customers can flip a negative short-term ROI to strongly positive. This is why tracking BF cohort LTV at 90 and 180 days is essential for a complete picture.
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With over a decade of experience in e-commerce optimization, Muhammed founded Growth Suite to help Shopify merchants maximize their conversion rates through intelligent behavior tracking and personalized offers. His expertise in growth strategies and conversion optimization has helped thousands of online stores increase their revenue.
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