Each time you fill the bar you will earn more rewards for completing the Day!
To increase the Cash Out power, you have to upgrade the character related to this power.
In the Managers list, you can see which managers you have to upgrade by clicking on them.
The amount of rewards are displayed at the end of Boss Fight.
Increase your Cash Out Power by upgrading certain managers!
Disclaimer: Rob the Rich is a free-to-play GAME! It won't give you any real cash or cryptocurrency.