Use result of a formula column as a trigger for automation

I would like to be able to make a calculation using a formula, and when the result is higher than a certain amount, to be able to trigger an automation that creates an item on another board.

For example, my event costs 150.000 and I have 100 participants. I would like that if 150000/100 is bigger than 1000, then it should open an item on another board for special budget approvals.