A data set that occurs frequently consists of the values or the percentage breakdown of several categories for two time periods. A common way of plotting these data is to use a pair of pie charts.

Forbes contributors publish independent expert analyses and insights. I help people communicate data clearly with graphs. Figure 1 shows the first two of the pies. Due to the length I didn’t include ...

If you want to create a pie chart in Excel, this step-by-step guide is for you. In this article, we would consider the Hierarchical Sunburst chart as a type of pie chart, though the procedure for ...

Pie charts are a way to show data. Pie charts show proportions of a whole. The circle of the pie chart represents the whole. That's a full 360 degrees. Each part, or slice, represents part of the ...