Check open comments in each page and posts in your posts list.
To check how many open comments are there on your each post, go to Posts > All Posts list. Here, an additional row, with the title as Editorial Comments must be active. In this list, the format for the editorial comment counter is:
Open or Active Comments / Total Comments.
Similarly, you may navigate to Pages > All Pages list, check the second entry related to the page, of which you want to check the active comment count.
For example, see the screenshot below. Now, to check the number of active comments for the Resource page, look for the entry below Editorial Comments in front of this page’s name.
Here, 10/26 signifies that 10 comments are in active state out of 26 comments.