This is how I check it, Ellotris can confirm if it's accurate. Go to your profile which can be accessed by clicking on your avatar on the top right of the page. Look where it says "Posts Improved" and this is how many posts you edited. Please see image below for the way it looks.
However, you only get 1 point per edit and it's maxed out at 500 edits. For example, I have 509 posts improved which means I gained 500 points from editing, I won't get any more points because I maxed out when I hit 500 posts improved. This amount is already added in the total of your score. Source: https://www.tibiaqa.com/moderation-rep-points