That’s been true for the last 20 years. It will be a higher percentage now.

Very little and and what is donated likely will be spent inefficiently (as in many charities) or maybe even with negative efficiency (see greenpeace who is largely responsible for us not having cheap, green and reliable nuclear power).

I prefer to buy cheaper products and decide for myself how I should spend the price tag difference on charity, not trust clothing brand to do it for me.