Cost Center equals Requester Department

Summary: I have to create an PR approval condition of when Requester Department is same as cost center than approval need to follow supervisor hierarchy but if they are different it needs to follow cost center manager's hierarchy. We have close to 100 cost centers and I dont want to hardcode them, is there an automated way to do this?

I am trying to check if requester department <> cost center and this condition doesnt exisist. I checked with Oracle and they said one is text form and other is LOV so this isn't an option. Is there a way to achieve this without hardcoding?