My father is in assisted living after having 2 heart attacks and dementia progressed aggressively to about stage 5/6. He has coherent moments and wants to know how much the facility he is living in is costing him. I try and change the subject and re-direct as much as possible, but sometimes he is just adamant and feels like he has lost all control. I certainly don't want him to feel that way but he hasn't understood finances in a few years and I don't want to stress him unduly. Any ideas on how best to respond to him?