One of the reasons that your submission rate seems low is that your school could be listed more than once, this can happen when a student enters your school name in a different way on the FAFSA form. If your high school name is listed under different names, then it could be listed in more than one place
What if I submit a FAFSA form but it is not completed correctly?
You will then receive an email from the Department of Education asking you to correct the FAFSA form. You have to have completed the FAFSA form correctly in order to be eligible for financial aid or federal student aid
What happens if some students list a high school under a slightly different name?