There is no way to make an accurate guess about how much a student will owe as a result of their Return of Title IV Funds calculation (R2T4) after failing to complete their classes. The amount you may owe back depends on how much financial aid you were eligible for and how much of the term you completed. This can lead to varying amounts of aid needing to be returned.
If you have withdrawn, and the calculation resulted that you have not “earned” all your aid for the trimester, you will be notified via email no later than 45 days from your last date of attendance. Once you get the email you can log into the student portal to see what your balance is, or call your student advisor for help navigating your situation.