Pinion angle

Sorry for the high jack. When mentioned of 5*-7* down. Is it from the drive shaft angle or trans angle? Here's my situation. My Trans is slanted 2* down. I messed up and welded my perches with the pinion leveled out, with perches 5* down. I probably should have welded my perches so the pinion faced up 2* right? that would have phased the pinion angle with the transmission angle. So by my beer math I am negative 7* from transmission angle? I'm going to wait until I get my springs installed and see what it looks like under my car. But I will admit i messed it up and most likely be cutting them off and redoing it. It's just a street cruzer.