“Seems odd, but not much I can do at this point.”
You should work through the worksheet in post #2 and see if you get a different result, one more similar to what you were expecting. If you discover you made an error - you can also correct your FAFSA.
https://studentaid.ed.gov/sa/fafsa/next-steps/correct-update
What state are you in? State aid is often determined by FAFSA, too.