My father has always been very stubborn and never wants to ask for help. Unfortunately now he has dementia but still feels very capable. We are signing power of attorney papers this week. I believe he is paying his bills. Whether they are on time I’m not sure. He won’t let me look at them. I’ve noticed when we go out to eat he’s no longer able to calculate tip. So I’m worried he may not know how much to pay on credit cards before interest kicks in. He’s just had some dental work on care credit and I’m worried he won’t be able to calculate payments without my help. Any suggestions?