I do percentages after numbers. So if it goes from x1.5 to x2, then +20%, I read it as 1.2 x (AGI x 2). Of course, since you're doing all multiplication on that one, it doesn't really matter - but on the other, it'd be (AGI + Lvl) x 2.
It's the falling that I'm really enthusiastic about, though. Freefall 8, Light Body 3, and Force 6 foci for each (Magic 12): jump out of a 13-story window 54m up and make a three-point supercool-style landing with No Problem Whatsoever, Baby.