Common App Mistake Please Help!

So I have submitted my commonapp to several schools already. However, I just noticed that under the Activities section, my hours per week for a seasonal sport were 3 hours per week- I meant to write a different number. Will the colleges really look down on this mistake if I correct it? Also, how should I correct this- email, mailing in a letter, etc? Any advice would be extremely appreciated!</p>

<p>I guess it would depend on the disparity between the written and the actual number. If it's a huge noticeable difference, I would email. I've done it before and just be patient about it. Good luck!</p>

<p>yes its quite a difference and i will do that thank you so much!</p>