Ignoring negative values
If a visual has both negative and postive values, you have an option not to display negative values. This task applies to stacked Bars and Area visuals.
To ignore negative values in stacked bar and area visuals, navigate to the Marks menu, and select the When both positive and negative measure values are present in stacked bars/area, ignore the negative measure values option.
The following image shows the stacked bars without the negative values, when this option is selected.
The following image shows the stacked bars with negative values, when this option is not selected.