Column Charts are usually created to compare values of several items distributed on any basis.
This Multi-series Column chart shows the information about revenue from selling products in several states.
Each series of this chart represents a revenue volume from each product in the particular region. The Y axis is
vertical and holds the values, while X axis is horizontal and holds the names of products. All series can be selected
and then turned on/off or hovered by clicking or hovering the appropriate legend items. The series
grouped in a way that allows to compare the revenue volume each product brought to the company in each
region. Revenue is shown as labels above columns. Tooltips are enabled
as well: they show the product names in titles and the states and revenue volumes are shown in the tooltips’