“The Optimal Number Of Categories In A Pie Chart”

It’s very simple, really: you do not compare proportions in a pie chart. Because a pie chart is not a comparison chart, it’s a part-to-whole chart. When you do this: what you really want to do is to compare each slice to the whole, like this: because, if you want to compare them you must do this: I hope that you find this pretty obvious.

Read more at: www.excelcharts.com

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