there were 585 kids in my daughter's freshman class and 402 or so graduated, and while I don't recall the numbers, it was about the same with my son so.. maybe that's typical? but they both moved up in class rank/% both, as the numbers dropped.
the numbers drop for a lot of reasons.. some kids graduate early. some get held back but do graduate next year. course.. that happens every year so probably doesn't count. some move as the suburbs grow. some get tired of the highschool crap and take the GED and hop straight to community college at 16. some move to more elite highschools.. magnet programs, governor's schools, prep schools.. some just drop out.. but not 200 of 'em.
anno