Arrow charts and slope charts are alternatives to multiple pie charts when the data consist of the values or the percentage breakdown of several categories for two time periods.

Pie charts look cooler than other kinds of charts. They're based on pie, after all, and seem less accountant-like than bars, bubbles, and lines. They are, however, often a very wrong way to ...

Learn how to use and read a pie chart with this KS2 Maths guide from BBC Bitesize.

Step by Step Instructions for Creating a Pie Chart in Excel. Whether you are preparing a proposal for a new client or presenting your annual sales forecast, pie charts provide an instant ...

Jump on top of the second bar graph to lower the third and first bar graphs while raising the second one up. 2 - 8 The final puzzle once again hides the final pie chart.

Since it is tax day I chose a chart from the IRS for my comments today. Figure 1 shows the chart with the labels cropped out. The wedges of a pie chart add to 100%. Please estimate the percentage ...

I have a confession. I never actually considered the origin of graphs or pie charts. It never occurred to me that they had any history at all, I probably assumed they were as old as mathematics ...