Donut Charts are designed to display part-to-whole information, same with Pie Charts. It has the same restrictions as Pie Charts do – like the preferably maximum number of slices, absence of negative values, non-availability of adding new series, just one axis. Donuts have a hole in the center.
This chart is a sales chart, telling about several products sold. Labels are on, we can see all of them. You can manage the view of the chart by clicking and hovering the parts or the legend items. If you click on a piece of a pie or its legend item, the piece will become exploded/not exploded, and if you hover them, it will become highlighted. As you could have noticed, the chart is being colored with a range of colors. This is another way to color a chart.