Percentage of sessions that are tied to a specific behavior you are analyzing at the site level.
This metric is available in Dashboards and Alerts.
How it's calculated
Percentage of sessions=Number of sessions to the site from a particular segment and device÷ Number of sessions to the site across all segments and devices
How to interpret it
Use this metric to see what percentage of your overall site traffic can be attributed to specific segments/devices visiting your site.
Segments/devices with higher percentages of sessions can be targeted to promote conversion.