I'd assume it's a percentage of net income. If the median 1 bedroom apartment is $3000 and that is ~80% of net income that means they make $3750 a month which i

I'd assume it's a percentage of net income. If the median 1 bedroom apartment is $3000 and that is ~80% of net income that means they make $3750 a month which is 45k per year net. Gross would be about 70k. That seems ballpark correct. That means they have $750 a month for food, transportation, school loans, etc. If you don't have a car and your company provides weekday dinner and public transportation it's probably doable but clearly a terrible idea...