My neighbor is licensed and she charges $175/week I think. She provides meals for the not-school age kids. The bus picks up the ones that come before/after school.
Really, really make sure you're paying yourself. You do NOT want to be making $2/hr/kid by the time this is all said and done. You will resent it. And if you're helping out a family member because they "can't afford" regular day care or don't trust them, etc...check to see if they qualify for child care assistance, and what it would take for you to be their provider. That way you can have your tax dollars go to work for you, kwim? Sometimes you don't need to be licensed when it's for family members, or if you only watch one family's kids.