With green categories and a good Work Ethic (and high school GPA), and a good amount of practice minutes, all categories will jump 30+ points. However, LP and PER can jump as many as 70 or 80 points. The jump from 41 to 99 is a high outlier for the passing category, at 58 points.
Possumfiend has done an excellent analysis of potential increases, but I don't have time right now to look it up.