If you built a pie chart manually using this table's data, each pie slice's size would correspond to a car's inventory count. For example, if one you had 50 Fords and 100 Pontiacs, ...

The Pie graph will be created with the table for the data. Since there is only one piece of data in the table, the Pie chart will just be one big unsliced pie.

In this tutorial, we choose Tables because the data we want to turn into a Pie Chart is in a table. Below are the Axis (Category) , Legend (Series) , and Values (Y axis) .

To produce a pie chart, data is required. The data often comes in the form of a table. To create a pie chart, the size of the angles needed must be calculated.

For example, this chart from a study on data sources used for COVID data visualisation shows hundreds of categories in one pie. A pie chart with dozens of categories.