This is commonly used in sales as 80% of sales typically come from 20% of the customers.
Renzo Costarella explains “ The Pareto Principle — also known as the 80-20 rule — suggests that 80% of results come from 20% of the effort put in. This is commonly used in sales as 80% of sales typically come from 20% of the customers. ” In other words, 80% of your team’s results come from 20% of their actions.