Alpha 2.4 is available now. As requested by the community, we now have two new interfaces: transaction log and budget interface.
In transaction log, you can track your income and spending.

Budget interface shows the money owed to electricity company, workers, researchers.
It also calculates your net worth according to the amount of coins you have and the coin price.
As you will observe in the interface, researchers and engineers stop working if they have unpaid salaries.

Feel free to share your feedback and suggestions through discussion forums.