These angles should add up to 360°. If they do not add up to 360°, something is incorrect. Image caption, To plot the pie chart, start by constructing a circle. Use a pair of compasses.

The concentric rings of the subgrouped pie or donut chart make it easy to compare slice values between subgroups. In addition, you can use global statements to modify patterns and legends, as well as ...

Today, we update one of our favorite charts, which looks at how orders route ... and how orders are handed by brokers, means each pie actually works quite differently to the others.