Sure, but unfortunately the minimum necessary grade is currently a 50% "just managed to cram in enough rote learning in the final week to scrape by" pass mark.
50% and 100% obviously don't mean anything by themselves.
You can have a minimum of 50% and still have kinds know 10 times more than what a minimum of 100% course has them.
50% of an advanced course is better than 100% of a course for idiots.
It's all about the breadth and deepness of the material, not some arbitrary mark on it, like 50%.