The 'Number' being what exactly or where would you take it from ?
EDIT: Nvm, figured it out. But it doesn't work. Read a lot of people having this issue. They should really make the font layer smart. If you resize it vertically, by means of transform, it should change the vertical scale as well, same goes for horizontal, or font size if you use constrained resizing (with shift pressed).
I'm so disappointed. Year after year, Adobe's products get progressively worse and dumber.