Complex sentence: Attrition rates were huge, with a 25% freshmen dropout rate and graduation rate below 50%, with only 40% of 5,672 undergraduate full-time day students enrolled in the Fall of 1984 graduating by 1989.
Split into simpler sentences: Attrition rates were huge, wit a 25% freshmen dropout rate and graduation rate of only 50%. A total of 5,672 undergraduate full-time day students were accepted in the fall of 1984, yet only some 2,287 had graduated by 1989.