Have you ever heard of the 80/20 rule? It’s called the Pareto principle, and it states that roughly 80 percent of the effects come from 20 percent of the causes. This could be for anything: 80 percent of sales come from 20 percent of the customers, 80...
Have you ever heard of the 80/20 rule? It’s called the Pareto principle, and it states that roughly ...








