So for one of the activities on my common app I meant to put 42 weeks per year and 2.5 hours a week, but on accident i put 42 hours a week and 2.5 weeks a year. I just sent this to three schools, and I am kind of freaking out. Do i need to call them and let them know? Or is it not really a big deal?
It doesn’t sound like a big deal
Sure, call them and let them know. It might make you feel better.
This is trivial. They will figure it out. But if it makes you feel better, send a brief email with the correction.