Hi Daniel,
There is no single passing score with the PMP Exam.
For many years now, PMI has been using a so-called "psychometric assessment system".
That means, the passing score is individual to each exam, and depending on the difficulty level of your exam, that is once again individual, cause
your Exam Questions are drawn from a pool of thousands of questions.
So, if you do have many easy questions in your exam, your passing score will be higher than average, and the other way around.
That means, like Harry already mentioned, the only thing you can do is to ensure being as best prepared as you can; and that should be your focus.
BR,
Markus