> Accessible toilets are never less than 50% of all toilets in the building.
Of hundreds of buildings I've been to, I have never seen a single place where that is even close to being true. Including hospitals. Do you mean accessible? With double drop handles, Wide enough to put a wheelchair next to the seat? Accessible handbasins (low, easy to reach the taps)?
I find it very hard to believe that more than 50% are.
I don't understand the "/s." The public restrooms I encounter have either one or two stalls, and one of them is always accessible. Accessible toilets are never less than 50% of all toilets in the building. Occasionally there might be one wheelchair user in the building.