Funnel charts let you compare a group-by property to another baseline property. After your Funnel chart has a Segment property group-by, click the _Compare_ dropdown to choose a value for comparison.

With that value selected, the conversion percentage difference appears in the microscope when you hover over a value in the visual, and in the breakdown table. For a particular step in the breakdown table, the table shows both the absolute percent difference and the conversion percent difference.

Segment property group-by comparisons have these limitations:

- Only available for Conversion and Conversion Over Time.
- Only applicable to Compare to Property Value or Compare to Past.
- Limited to a maximum of two Segment group-bys.