if you click on the background to stop time where the menu to either find contracts, make a game/sequel and other things come up, and click many times on the “contract done” message you can earn a LOT of money. i was able to earn 500 mil from the garage after finishing 1 13k contract. ( i did have to wait quite a while for all the messages to go away though). i thought i’d post this here for you lot to see