Engagement Rate (E.R.) is an important metric that shows followers' engagement (likes and comments on content). The higher the E.R, the better.
A high E.R. shows that followers are frequently liking and commenting on posts.
A low E.R. indicates that most posts are either not viewed or do not engage followers' interests. A low E.G. can also indicate a large number of bots among followers.
The average E.R. depends on the popularity of the influencer. Influencers with a large base of followers tend to perform worse than micro-influencers.
This is normal, as micro-influencers tend to have a more cohesive audience of the same interests.