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Pie of Pie Chart

Excel pie of pie chart example

The Pie of Pie Chart is a built-in chart type in Excel. Pie charts are meant to express a "part to whole" relationship, where all pieces together represent 100%.

Pie charts work best to display data with a small number of categories (2-5). The Pie of Pie Chart provides a way to add additional categories to a pie chart without generating a pie chart too complex to read. When configuring a Pie of Pie chart, Excel provides a setting that moves the smallest n slices of the pie to another smaller pie, where n can be adjusted to suit the data.

Pie of pie charts should be avoided when there are many categories, or when categories do not total 100%. The human eye has trouble comparing the relative size of slices in a pie chart, and this problem is compounded with the pie of pie variety.

Pros

  • A simple way to handle more categories in a pie chart
  • Can be read "at a glance" with limited categories
  • Excel can calculate and display percentages automatically as data labels

Cons

  • Difficult to compare relative size of slices
  • Become cluttered and dense as categories are added
  • Limited to part-to-whole data
  • Poor at showing change over time

Tips

  • Limit categories
  • Avoid all 3d variants