According to the CDC, 1.03% of the population identifies as transgender. Not including people like me who are enby but not trans (1.4% who get their own other category).

As for the 1 in 400 getting shot, that's obviously dubious, and the question is how they arrived at that value (say at a different time frame.) I'm working on it.

That said, as this is c/196, I posed it from my old reddit meme pile without checking the facts so I'm not invested in its veracity. The other numbers were verified in these comments, thank the Lemmy community.