Interaction on status updates of time period (in %)
Number of reactions divided by the status updates and divided by the number of followers. An profile with 200 followers gets a total of 30 responses to its 10 posts, then the interaction is 1.5% (30/10/200 = 0.015 = 1.5%).
Engagement on status updates of time period
The engagement is calculated by dividing the interactions of users on one day by the number of followers. That includes comments and favorites, the engagement thus shows, how many follower interacted with the status updates of a profile. The objective should be to increase this KPI. The higher the engagement with the content of any profile, the higher its reach.
Engagement per day in time period
How many times members clicked, liked, commented on, and shared your content in both organic and paid campaigns, as well as the number of followers acquired through paid campaigns, divided by the number of impressions of a status update.