In my understanding "top 25%" might be read as "better than 75%".
But insights say "better than 18% of users" (and that's for selected age/gender) which could be read as "bottom 18%" or "top 82%" (eeeeeew).
If i switch from group 40-44 to 45-49 it is still "better than 21% of users".
I suspect I might be not the part of "top 25%" group.