ACE minimum score on CLEP question

[SDO]

Hi all,
I know for some CLEP exams, it says you need an ACE recommended score of 50.  

Do you know what a 50 equates to?  For example, the Calculus CLEP is 44 questions and passing ace score is a 50.   Does anyone know what grade percentage on the clep exam that equals?

Thanks again

I saved the following conversion chart some time ago. I don't remember the original source. 

CLEP Raw Score Conversion Chart is as follows:

Scaled scores of 58 to 80 are equivalent to an A.
Scaled scores of 53 to 57 are equivalent to a B.
Scaled scores of 47 to 52 are equivalent to a C.
Scaled scores of 41 to 46 are equivalent to a D.
Scaled scores of 40 or under are equivalent to an F.