What is the definition for a donut graph?

A donut graph is a circular statistical graphic, which is divided into slices to illustrate numerical proportions. In contrast to a pie chart, a donut graph has a blank space in the center, which makes it useful for comparing proportions between different categories. Additionally, donut graphs can be used to show trends over time.

Donut graphs are often used in business presentations and reports, as well as in infographics and other visual representations of data. They are also used in web design and other digital applications.