How do you view the percentage of people who get a Steam achievement?

In the Steam Library interface, for a given game, I have a "post-game summary" section that shows an achievement, and what percentage of players obtain that achievement. (ie. "7.2% of players have this achievement").

However, once this post-game summary disappears, I can no longer view that percentage of people. I tried going to View My Achievements, but it doesn't show up there.

Question: how do I view the percentage of players who have a specific achievement later on, after the post-game summary is gone?

You can see these stats in the Global Achievement Stats page, reached by clicking the "View global achievements stats" link on your achievements page: