apple numbers formula referencing its own cell
I need to create a formula that allows a calculation to reference its own cell, but I keep getting this message:
This formula can’t reference its own cell, or depend on another formula that references this cell.
I need to make this happen because in my example I have a total investment amount for a person. this converts to a percentage base on what the total of all the peoples investments are. when a new project finishes and there is a profit, I use their percentage to calculate their share of the profit. After this, their share of the profit adds to their total investment amount, more or less a running total. Is there anyway to do this?