i just noticed that if you pay the payroll assistance in any of your maps, and eave the map soon after, the payment is added to your output even when you leave that particular map. unlike trades/gifts, which dont have any trailing gains even if you leave the map soon after accepting the gifts.
none of the maps taking major amounts of money have any money draining buildings. but the stats have been the same from pretty long time.
it must be noted that though once you enter back to that map, the output vanishes but if you exit it again, it might come back.