Template > Charts > Easy Pie Charts
Easy pie chart is a jQuery plugin that uses the canvas element to render simple pie charts for single values. These charts are highly customizable, very easy to implement, scale to the resolution of the display of the client to provide sharp charts even on retina displays.
Ok, but when to use pie chart? Pie charts are mostly used to show how much individual shares — such as quarterly sales figures — contribute to a total amount, such as annual sales.