Right now it seems that for owner stays, either the dates are included as booked or as empty. I think that for owner stays, the dates should be removed from the equation so they don't count as either. For example, if the owner stayed for 5 days out of a month with 30 days, the real guest occupancy would be guest stays/25 days instead of out of 30. I don't think the owner stay should really count toward or against occupancy.