What is the Pareto Principle?

The Pareto Principle, also known as the 80/20 rule, states that for many outcomes, roughly 80% of the consequences come from 20% of the causes. This was first observed by Italian economist Vilfredo Pareto, who noticed that 80% of the land in Italy was owned by 20% of the population.

This principle applies to many areas:

• Business: 80% of sales often come from 20% of clients. As you can see in the simulation above, just two customers (20% of the group) account for a huge portion of the total revenue.
• Software: 80% of users typically use only 20% of the software's features.
• Productivity: 80% of your results may come from 20% of your efforts.

By clicking through the customers, you can see this imbalance firsthand. A small number of "vital few" customers dominate the total revenue, while the "trivial many" contribute much less individually. Understanding this helps businesses focus their efforts where they will have the most impact.