20 cards per year x 10 fights per card = 200 fights per year
200 fights per year x 2 fighters per fight = 400 fighters per year (similar to man hours)
To achieve 3 bouts a year per fighter (which I think is a good number), the UFC needs 400/3 fighters or approximately 133 fighters on its roster. Let’s round off to 135 to make this easy.
Suppose the UFC keeps 3 guys on notice in each division that can step in because of injuries, etc, we then have 3 x 5 = 15 fighters on notice.
So, in total the UFC could keep 135 + 15 = 150 fighters (or 30 per division).
If we are at 40 fighters per division now, we’re probably looking at 10 cuts per division or 50 total cuts to get from 200 fighters to 150 fighters.
Of course, we don’t really know how many fighters Dana has under contract right now, and we also don’t know how many events the UFC is planning on throwing next year. But I’d say from a general point of view, 50 fighters sounds about right. Fighters who wanna stick around might wanna start practicing their impressive spinning flip death kick.