Show Highest Score

lets I take a unit test and 8/9 questions correct. And I want to retake it to get a 100%. Yet I get one once again so I flip through the rest of the test so I can retake it. Now it says i got a 44%, and my other assignment things get leveled down. (Which doesn't make sense, why level them down when they were already leveled up???) So when I finally get a 100% yet the assignments I leveled down on are still only at familiar now. Meaning I have to retake them again.

Ye that might be hard to follow what I wrote but the bottom line is: Why not just store the highest score and discard the rest? It's infuriating to almost see your progress go backward.