A pie chart is a circular diagram showing a set of data divided into proportional slices. There are several variations of this chart such as donut chart, exploded pie chart, multi-level pie charts. Although it is not very informative when a ring chart or circle chart has many sections, so choosing a low number of data points is quite important for a useful pie chart.
ConceptDraw DIAGRAM software with Pie Charts solution helps to create pie and donut charts for effective displaying proportions in statistics, business and mass media for composition comparison, i.e. for visualization of part percentage inside one total.
