Question about my PSAT score?

I'm pretty sure that to be able to make national merit your percentile score has to be at least 98, probably 99. It is a huge honor but extremely selective, I have a high school cl of 957 students, and only 2 of them got a National Merit scholoarships (even the kid who got a 36 on his ACT didn't make it!) , and i think they were only semi-finalists.