Documentation

Height Percent

Set the default bar height for your combo chart. This setting will be available If your selected Type is Column. 

The default setting is 100%, which means that the columns are as wide as permitted by the Max Unit Height of the Y-Axis. Decreasing this value will result in thinner columns.

This setting will override the default Width Percent settings for this series, enabling you to find creative ways to visualize stacked bars, such as lipstick charts, box-and-whisker plots, and other combinations.