# Pareto chart
[Pareto chart](https://api.highcharts.com/highcharts/plotOptions.pareto) is used to visualize data based on [Pareto principle](https://en.wikipedia.org/wiki/Pareto_principle); where the 20% of effort that yields 80% of results. Pareto chart is often used to maximise business efficiency.
####  Tip
Notice the use of a second y-axis on the right to visualize the Pareto chart automatically (thanks to the pareto.js module); the axis on the left visualizes the original dataset.
