Does the 80/20 rule hold for your revenue? A worked example
"80% of revenue comes from 20% of products" is repeated far more often than it is measured. The honest answer for most businesses is a different ratio — and the exact ratio changes what you should do next.
· 5 min read
Example annual revenue by product line
| Product | Revenue |
|---|---|
| Enterprise plan | 184,000 |
| Pro plan | 96,000 |
| Add-ons | 41,000 |
| Starter plan | 22,000 |
| Professional services | 12,000 |
| Training | 5,000 |
Sample figures for illustration. Paste your own revenue export to see your real concentration.
Concentration is a spectrum, not a rule
Some catalogues land near 60/40, others near 95/5. A highly concentrated catalogue means focus pays off enormously — and that losing one product line is an existential risk. A flat catalogue means no single bet will move the number much.
Run the analysis first, then decide which story you are in.
What to do with a concentrated result
If two lines carry most of the revenue, the priority is protection and expansion: reliability, pricing, onboarding and retention for those lines specifically.
It is also a risk signal. Concentration means a single churned segment or a single pricing mistake hits the whole business.
- Protect the top lines: reliability, support, retention
- Question the tail: does it cost more attention than it returns?
- Track concentration over time, not just once
What to do with a flat result
A flat curve says no single product will save the quarter. Improvements that lift every line — pricing, checkout, activation — beat product-specific bets.
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Example annual revenue by product line
- Total
- 360,000
- Categories
- 6
- Vital few
- 3
- Top 20% share
- 77.8%
Priority #1
Enterprise plan
51.11% of total · 184,000
| # | Category | Value | Share | Cumulative |
|---|---|---|---|---|
| 1 | Enterprise plan Vital few | 184,000 | 51.11% | 51.11% |
| 2 | Pro plan Vital few | 96,000 | 26.67% | 77.78% |
| 3 | Add-ons Vital few | 41,000 | 11.39% | 89.17% |
| 4 | Starter plan | 22,000 | 6.11% | 95.28% |
| 5 | Professional services | 12,000 | 3.33% | 98.61% |
| 6 | Training | 5,000 | 1.39% | 100% |
3 of 6 categories account for 89.2% of total impact.
Vital few: Enterprise plan, Pro plan, Add-ons.
Enterprise plan is the largest contributor at 51.11%.
Enterprise plan represents 184,000 of a total of 360,000.
Strong concentration: the top 20% of categories hold 77.8% of the total.
A small number of categories drives most of the outcome.
3 categories share the remaining 10.8%.
These are the trivial many under the Pareto principle.
Review Enterprise plan first.
It is the single largest contributor at 51.11% of total impact.
Concentrate resources on Enterprise plan, Pro plan, Add-ons.
3 categories already cover 89.2% of the total, so they offer the largest area to investigate.
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Key takeaways
- Measure your ratio instead of assuming 80/20.
- Concentration is both leverage and risk.
- A flat curve favours cross-cutting improvements.