$350? Is that subsidized? That doesn't seem possible.
A good student:teacher ratio for 1-2 year olds is 1:3, for 3 year olds is 1:5 and for 4 year olds is 1:8. Assuming an even mix, that's an overall ratio of 1:4. 350 x 4 x 12 is $17K a year per teacher, and that's only if nothing goes towards rent, supplies and the other costs of running a day care.