Brittany,
Interesting perspective since I think most find the return of TIV process to be complicated and labor intensive; however, I see your point of view as stated. It is important to ensure that your students have all of the information prior to withdrawing and anything that keeps them in school through graduation is extremely important. However, when a student has not choice but to withdraw due to unforeseen circumstances it is good that the calculation allows the amount retained to be in line with the length of time in class.
Sincerely,
Chyrl Ayers