How is financial need assessed if you currently work full time, but won't be after starting school?

I currently work full time, but either this fall or next I will be returning to school full time. I plan on working either a part-time job or possibly full time. My question is will my financial need be based on my current salary, which I won't be matching even if I work a full time job? Or do they take into consideration that I will need to switch jobs in order to go to school full time?|||It is based on your previuos year salary. So, if you quit your job, you will not get more aid the current year, but get more the next year since your income will be less.