logaritym wrote:870 - 94%
I've heared that:
below 80% - not very good;
between 80% and 90% - OK;
over 90% - good;
TOP % - very good.
So, anything over 80% is sufficient, even scores below it are not fatal. In my opinion, you don't have to take it again:)
I think there was a "misunderstanding" because this scale is not necessarily universal.
If you are applying to Berkeley, say, you and your friends are absolutely right; anything below 80% is pretty bad if you are applying to Berkeley, since they actually say so on their website. This standard is probably similar in most of the top-tier schools.
On the other hand, if you are applying to lower-ranked schools, then it's a different story. (Or I hope it is!)