What financial metrics should I track for discount campaign ROI?

Question

As an e-commerce business owner, I'm struggling to understand which financial metrics truly matter when evaluating the success of my discount campaigns. I want to move beyond simple revenue numbers and develop a comprehensive approach to measuring return on investment. My goal is to create a data-driven strategy that helps me understand not just the immediate impact of discounts, but their long-term effects on my business's financial health. What key performance indicators should I be tracking to get a holistic view of my promotional efforts?

Muhammed Tüfekyapan · Accepted Answer

Financial Metrics for Discount Campaign ROI
Most stores track the wrong metrics for discount campaigns. Redemption rate and total revenue during a campaign period tell you almost nothing about true ROI. These are the metrics that actually measure financial impact.

Core ROI Metrics

MetricFormulaTarget

Incremental revenueCampaign revenue - Baseline revenue (same period, prior year or no-discount control)Positive and growing
Discount cost ratioTotal discount redeemed / Total revenue x 100<5% for baseline campaigns
Gross margin with discount(Revenue - COGS - Discount value) / RevenueNever below 25%
Campaign ROI multipleIncremental revenue / Discount cost3x minimum; 5x+ optimal
Discount-acquired customer CACTotal discount value given to new customers / New customers from discountBelow 6-month CLV
90-day repeat purchase rate% of discount-acquired customers who return within 90 daysShould match or exceed full-price buyer rate

Metrics That Don't Measure ROI (Common Mistakes)

Total revenue during campaign: Includes revenue that would have happened anyway
Redemption rate alone: High redemption = broad targeting, not necessarily good ROI
Orders volume: More orders at lower margin can be worse than fewer orders at full margin
Revenue uplift % during campaign: Seasonal effects, not discount effects

Growth Suite Reporting Tools
Growth Suite's Funnel Report and Cart Insights provide the conversion and revenue data needed to populate these metrics. Because Growth Suite separates offer viewers from non-viewers, calculating incremental revenue is straightforward - you have a natural control group (visitors who triggered exit-intent but didn't receive an offer) to compare against.

What financial metrics should I track for discount campaign ROI?

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Financial Metrics for Discount Campaign ROI

Core ROI Metrics

Metrics That Don't Measure ROI (Common Mistakes)

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Muhammed Tüfekyapan

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Use Cases

Metric	Formula	Target
Incremental revenue	Campaign revenue - Baseline revenue (same period, prior year or no-discount control)	Positive and growing
Discount cost ratio	Total discount redeemed / Total revenue x 100	<5% for baseline campaigns
Gross margin with discount	(Revenue - COGS - Discount value) / Revenue	Never below 25%
Campaign ROI multiple	Incremental revenue / Discount cost	3x minimum; 5x+ optimal
Discount-acquired customer CAC	Total discount value given to new customers / New customers from discount	Below 6-month CLV
90-day repeat purchase rate	% of discount-acquired customers who return within 90 days	Should match or exceed full-price buyer rate