I watched the entire video, twice.
Here's their example for DE007O1A:
This is an Either Sex Archery Deer unit with 1,000 tags. 20% (200 tags) go to landowners right of the top (a statutory requirement, no residency requirement), then another 15% (150 tags) is taken off the top for youths (this pertains to Doe Pronghorn, Antlerless Elk, and Antlerless & Either Sex Deer). Then using the 65% / 35% distribution applicable to most units we’re left with 423 tags for Residents and 227 for Nonresidents. Because this example was Either Sex Deer the youth set-aside applies. If it were a different hunt without the youth set-aside the final numbers would have been 520 tags for Residents and 280 for Nonresidents. It’s the relatively low final number of Resident tags that have hunters living in Colorado concerned.
So 423 tags out of 1,000 for residents.