The 80/20 of SKU Profit: Finding the Products That Fund Growth
The Pareto principle applies brutally to Google Ads. A small percentage of your SKUs generate most of your contribution profit. The rest are either breaking even or actively destroying margin.
Running the Analysis
Export 90 days of Google Ads data at SKU level. Match each SKU to its contribution margin. Calculate contribution profit per SKU:
Contribution Profit = (Revenue × Margin %) - Ad Spend
Rank all SKUs by contribution profit. Then create a cumulative percentage chart. You'll likely see:
- • Top 10% of SKUs: 50%+ of profit
- • Top 20% of SKUs: 80%+ of profit
- • Next 40%: Breaking even or marginal profit
- • Bottom 40%: Losing money
What to Do with Your Heroes
Your top 20% are funding your entire paid acquisition strategy. They deserve special treatment:
- • Dedicated budget: Separate campaign with protected budget
- • Aggressive bidding: These can afford to scale
- • Feed optimisation: Best titles, images, attributes
- • Inventory priority: Never let these go out of stock
What to Do with the Middle
The middle 40% that break even aren't necessarily bad. Some questions to ask:
- • Can conversion rate be improved with better landing pages?
- • Is the margin fixable (renegotiate suppliers, adjust pricing)?
- • Are these gateway products that drive higher-margin purchases?
- • Can targeting be refined to reach higher-intent audiences?
If none of these apply, these products should run with conservative targets and limited budgets.
What to Do with the Losers
The bottom 40% that lose money need decisive action:
- 1. Can they be fixed? Higher ROAS target, negative keywords, better feed data. If the maths still doesn't work, proceed to step 2.
- 2. Do they have strategic value? Gateway products, loss leaders for customer acquisition, brand visibility. If yes, measure differently. If no, proceed to step 3.
- 3. Exclude them. Remove from paid activity entirely. Let organic and email handle these.
The Emotional Challenge
This analysis often reveals uncomfortable truths. That product the founder loves? Losing money. The new launch you invested heavily in? Breaking even at best.
The numbers don't care about internal politics or historical investment. They tell you where profit comes from. Ignoring them is expensive.
Ongoing Management
This isn't a one-time exercise. Products move between categories as costs, competition, and demand change. Quarterly reviews keep your focus on reality, not assumptions.
"You can't optimise your way to profit with a fundamentally unprofitable SKU. The 80/20 analysis shows you where to focus and what to cut."
What is the 80/20 rule for SKU profitability in Google Ads?
TLDR: 80% of profit comes from 20% of SKUs. Finding and funding your heroes is the highest-leverage optimisation.
In most ecommerce Google Ads accounts, 80% of advertising profit comes from just 20% of SKUs. The remaining 80% of products either break even or lose money. Identifying your profit-driving 'hero' SKUs and reallocating budget from underperformers to top performers typically improves contribution margin by 30-50% without increasing total spend.
- Profit concentration:
- 80% from 20% of SKUs(JudeLuxe client data)
- Typical margin improvement:
- 30-50%(JudeLuxe)
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