The mod changes the amount of gold that you will get in your next generated runs. All amounts are multiplied by 100, so your next run that would give you 3000 gold, will give you 300 000 instead. Notice that this mod will make your game disgustingly easy. You don't have to start a new game, but you have to finish some existing runs for new to be generated. 

Added the versions multiplying the amount by 2 and by 10. 

I received some troubles with x100 version, please remember to do backup.