So, on any other Invision site I've encountered, it displays a number of followers on the Follow button, but on my website it doesn't. I've searched the AdminCP for Follower but I didn't find what I was looking for. What do I need to change for Followers to appear? To clarify, This is what my website looks like:

As you can see, there is no number of people following displayed. This is the same with posts followed and not followed. What am I missing? Thanks in advance!

Have you checked this on a default unaltered theme first of all?

This is controlled via a group setting, so make sure that "Can view Follower information" (Under the Social Tab) is enabled for your group.