Yeah there's all those support classes too. Luckily I only have to take one chem class, it's definitely not my best subject.
I wanted to be generous since I wasn't exactly sure, my inital guess would have been 60%. But I do know for a fact that only 17% graduate in 4 years, I'm personally going into 5 and probably get my masters as well. They basically crammed a 5 yr major into 4, which is quite ridiculous.
same here. i have a lot of kids who are doing it in 5 but im on track to do it in 4 :)