Pie charts are usually used for representing the data which can be arranged in a row, with no zero or
negative values and - what now is important - with a few points. There are some situations when there are a
number of points with small values, but it’s necessary to show them in a pie. In this case, we can group
those points in one – this will help us to understand the chart.
This chart tells about cosmetic sales, and there are some products which were less popular, so their values
are significantly smaller. We grouped all values under 1000 and put all of them into one series. So, after
grouping, we have 6 slices of a pie, each is a series and represents a cosmetic product – except one, which
represents a number of products, which were less popular (nail polish, eyebrow pencil, eyeliner and
eyeshadows). Each series is colored differently; the legend is on, so you can highlight and
explode/unexplode the slices.