Charitable donations in relation to one's total income

I think it will be different for everyone. Someone on a good income might be less well off than someone on a lower income if they have higher medical expenses than someone else, are supporting an elderly or younger family member financially, or a whole host of reasons. Demands on people's incomes aren't equal so there's no telling how much of someone's income is available to donate based on the level of it.

Reported. This poster has two finance related posts. Caution needed.

Far too personal.