Hello! I am trying to move data from one field to another. If the Address field contains "PO Box" at all, then the content of that field needs to be transferred to the "PO BOX" field. I tried to do an IFTHEN formula, but I'm not sure how to get rid of the data from the Address field after it was moved to the PO Box field.

So for example, the address for Exit 13 Magazine is a PO BOX. That needs to be moved to the "PO Box" field.
Thank you in advance!