Oh wow! I used to give before and after school care. The bus would pick up at my house though so I didn't have to really do anything, the kids got dropped off and they walked to my house and came in. They were really only here for an hour in the morning and an hour 20 minutes after school (sometimes less). I only charged $5 a day per child. I actually charged the one child $2 a day for a bit, upped my rate to $3 for a bit then finally up to $5. Even then the parent thought it was a lot. I also didn't provide the children anything, no snack, no drink, no activities. Majority of the time the kids would watch TV in the morning and then play for a bit in the afternoon (watch TV for the last half hour of the day in winter). They only paid for the days they were here but it was $5 no matter if they were here in the morning, afternoon or both.

I have decided if I take children on the bus again I will be charging $8 a day for the days they need care.

I agree with others - if you said $15 then stick to it. I certainly wouldn't do it if I had to dress all the other kids to go pick up the child. That in itself is work $5! lol. And if you are feeding the child that would be extra. How much time she needs shouldn't matter.