how big a deal is a minor mistake on the common app?

<p>i submitted it to two colleges just now, but not the third cuz i realized this and freaked out... and i checked it meticulously! i put the number 73 for my graduating class size. and from our little online school directory i am 100 percent sure there are 73 people in my grade. howeverrrr i recall in the back of my brain my counselor saying for whatever reason we are supposed to put class size of 66? and i don't remember for sure i might be imagining that numberr but either way would it be a big deal? my correct class size should be on transcript right? but will the colleges think i'm lying.... or stupid....... ahhh D:</p>

<p>also it doesn’t affect my rank really, either way i’m between 15-20% but i think what happened is i used number of kids in my grade this year, but that my rank was based on last year’s grades and number of students maybe? idk really… can you ask le counselor to mention le error in his/her letter so that it don’t look like you were trying to mislead?</p>

<p>Not a big deal. The GC form will have the official school number. If it makes you feel better, send an e-mail to your admissions rep - but, find out the official number first.</p>