Yes it is important to note that score and GPA ranges on the money matters/scholarship page reflect the end result of the students from previous year. This is different from schools who do their scholarships by setting a benchmark and if you meet it, you get an amount. I’m guessing that USC’s method is some type of percentage (top x% get this scholarship A) although they seem to have a way to balance GPA and test scores. Anyway, this obviously means the stronger the class, the higher the stats will end up being for each award.
The only absolute that I know of is Leiber which is automatically awarded to National Merit Finalists.