According to what I’ve been told by college counselors and guidance counselors, colleges know how the grading goes high school by high school. Many colleges create their own algorithm based on your child’s scores. That way the playing field has been leveled - all of the kids are being compared by the same scoring system. Our school has a “weighted” GPA, so our GPAs are based on a 4.5 scale, not a 4.0 scale. And that is reported to the college. Our high school doesn’t rank - so where you rank in the class can’t be reported like it is at other schools. The colleges know that and don’t look for class rank at our high school.