I was below 245. For two reasons.
My class ranking was in the bottom 50% (With almost 450 students!) even though I had a 3.1 in High School. To be in the top 25% of our class you had to have a 3.9 or higher. Which caused my high school to change their grading scale dramatically.
They didn't accept all of my credits because I went to a trade school attached to my high school for half the day. None of those classes counted for the RAI score.
I was only a 3.0 in HS but scored very highly on the ACT which ISU was good in ISU's eyes. I also went to Iowa later on and found the admissions process at the business program be somewhat confusing