After having interviewed and evaluated many applicants, I can tell you that no one looks at one number. Committees are usually made up of a number of different faculty members, with different philosophies and different values. For example, there might be one there that is bent on numbers, and they might focus on a student's science GPA and try to argue against their getting accepted. Meanwhile, there will be others who are not so numbers crazy, and will argue for your acceptance, pointing out all the wonderful things on your application. It really functions like a jury, where there are some there to represent you and some to scrutinize you. Take home message: no one score or number decides your fate. The only exception is the MCAT when speaking about certain Ivy League places, where they have cutoffs (even though they deny it).