Impressions
The total number of times the post is shown.
Range
The total number of people who have seen the post at least once.
Impressions (organic)
The organic (non-paid) number of times the post is shown.
Range (organic)
The number of people who have seen the post organically (not paid) at least once.
Impressions (paid)
The number of times the promoted post is displayed to the selected target audience.
Range (paid)
The number of people who have seen the advertised post at least once.
Clicks
All clicks on a post (organic as well as paid).
Reactions
Number of likes, emoji reactions, shares or comments.
Costs
The advertising costs during the time period to promote the post.