Did I get a passing score the Macroeconomics CLEP????????

[Jesusfreak97]

So I took the Free CLEP Prep test for Principles of Macroeconomics, and passed with a 63.75%. They highly recommended trying to take it again and get a 75%. I am taking the CLEP Thursday because I need to take it before I start college next week. If I don't pass I know I can try again during Christmas break. I also need a 55 for it to be accepted by my school. I know this would be a barely pass moment, but do you all think I need to do a lot of cramming before Thursday? Also, do you think a 63.75% would be close to a 55 on the test, if not what would it be?
Thanks in advance!