Because the GMAT is adaptive, it's not a question of how many questions you get right; it's a question of which ones you get right. If you're getting all of the easy and medium questions right, you'll be getting higher-level questions and end up with a high-level score. If you're missing easier questions, though, you'll never get to the higher levels. You could get roughly the same number of questions right and wrong and still end up with a much lower score.

More on how this works here:
https://www.manhattanprep.com/gmat/blog ... an-i-miss/

You say that you've only missed ~25% of questions, and you understood most of those when you reviewed them. But were these easy or hard questions? If a lot of your mistakes were careless errors on easy questions, then 25% wrong could actually really hurt your score! If you're getting all of the easier one right and just missing the 25% that are very hard conceptually, you're probably in good shape.

Here's more information on tracking your work so you can minimize careless mistakes and get all the easy ones right: https://www.manhattanprep.com/gmat/blog ... -studying/

Good luck!

HI KDR83,

It has been some time since we've heard from you. Are you still studying for the GMAT?

Hi KDR83,

Glad to see that you are getting back on the horse. If you need any help, feel free to reach out.

Good luck!