No, map bonus is added before averaging, but there are 2 map bonuses: one from the actual difficulty you are playing on right now and one from the last difficulty your hireling played on, so your example is kinda true.
No, map bonus is added before averaging, but there are 2 map bonuses: one from the actual difficulty you are playing on right now and one from the last difficulty your hireling played on, so your example is kinda true.