Sims get a bunch of money when moving from dorms at end of University Term!

My sims got an excess of money when their term at University was done. This money was given to them after moving them back together and putting them back into their original household in San Myshuno after packing up from their Foxbury dorm. The first time it happened I got about 30,000 and the second time it happened I got around 26,000 extra I believe?