I don't think that everything scales 1:1.

I took this from the College Board website:

"Your raw score is converted to a scaled score of 200 to 800 points, the score you see on your score report. We use a process that adjusts for slight differences in difficulty between various versions of the test (such as versions taken on different days).

We do this to make sure there’s no advantage in taking the test on a particular day. A score of 400, for instance, on one day’s test means the same thing as a 400 on a test taken on a different day—even though the questions are different."

https://collegereadiness.collegeboard.org/sat/scores/how-sat...