<p>They do have two numbers, your NI and your application score. There isn't a particular "weight" to anything. They look at your SAT scores and GPA and put it on a scale 1-5, then they look at your essays, extra-curriculars, interviews, put it on a scale 1-5.</p>
<p>The thing is, they don't use a cutoff or anything like that. People with extremely high scores have been rejected while people with extremely low scores have been accepted. I guess you could say they have a rough scoring system, but it's not what they determine acceptance on (i.e. top 12% of scorers get in, etc).</p>