Putting this in modern day terms, I'll calculate it.
According to the UK National Office for Statistics, an average family spends around 489 pounds per week (as per 2012). This means they spend around 25,428 pounds a year (if they don't have holidays and are really conservative). Double that to accost for Jewel's large family and you'll get 50,856 pounds (I'm interpreting "feeding a family" as in providing clothing, water, etc., not just food). In the American dollar, that;s $87,187.53.
If we're talking about actually feeding a family, then according to Gallup, an average American family spends about $151 per week on food (although Forbes claims it's $181). For Jewel's family, that'd be a max of $15,704 (if they're really excessive).
So, in modern day terms, that's around $10,000. Quite a lot for a Breath. That also means Susebron has... $500,000,000 worth of Breaths! (Faints)