117. 472% of grade school students are unable to readily convert between fractions and percentages.

38.157% of informally provided statistics are made up on the spot under the assumption nobody will actually check.

You have a typo - it’s actually 83.157%

9% of people consists entirely of shoulders, elbows and knees

Who is the intended butt of your joke here?

And explain to me why it isn't you?

I am pretty sure they intended the butt of the joke to be intentionally themselves

He’s being self deprecating, yes