Hi Denise,
I also am located in Riverside county and I charge $150.00 for children up to 5 years old. 6 and over I charge 125.00 a week during summer and 100 a week during school hours.
This is the normal rate for Riverside County.
Yes I do have a seperate dc room, BUT i do not do preschool. I think you are charging too cheap also. It shouldn't matter if you have a license or not.
I would charge a little more.
Good luck and keep us posted