Red
You can see all past transactions in some detail already, although being able to see each item of staff outgoings linked to the staff member that is being paid, and a little more information on each line item.
I don't see how future would work? Bonus can not be predicted, nor can purchases of cash or daily rewards. so it would just be your base sponsor income less your expenses. Your future forecast would always be understated.
Also depending on expiring contracts, your outgoings could drop off sharply. How is the game supposed to know your future management decisions?
About the future thing yeah disregard that. That was more of a person to person basis. Like making your own calculations not the game itself.