To cheat:
1. Open Cheat Engine - Click on select a process to open (monitor icon - top left) - Make sure the game is running and select it from the list.
2. Load a save or start a new game (end tutorial recommended) - then on the right side under Value: type your current money*2 - example: 850*2
3. It will find a lot of addresses... Find this one in the list on the left: 101A64C8 - Modify that value (1700 in the example) with the amount of money you want x2 ... so if I want 10k - I will type 20000.
Done!