I graduated HS in 1980, so probably took the PSAT 2 years before that. I remember the total score was calculated by doubling the verbal score and adding the math. I scored higher on the verbal portion, so qualified for NMF with a 206-ish score, while a friend of mine who had a better math score did not make the cut-off (she was pretty upset about that). I think I got $1500 per year scholarship, which was a much higher percentage of the tuition than the amounts many schools award today to NMF’s.