Compensation

We want to default a value for one of the column in the compensation worksheet based on the business Unit. For egs: If Business Unit = A, then Pool factor =5; If Business Unit = B, then pool factor = 6 nd so on. We have a total of 150 Business Unit. We can create this in the dynamic calculation where we can define the condition based on Business Unit. Is there any simple way to achieve this as there are so many Business Units