You have to check with the centre that you want to enrol your child in, but if it's across all Sparkletots, it should be about $770 before any subsidy.
Working mums will get $300 subsidy (working at least 56hrs/month), and you can apply for additional subsidy based on family situation too - up to another $440! If you have full subsidy then it'll be just $30.40/month.
However, do note that you have to pay 1 month's worth of deposit (refundable upon withdrawal) and 1 month's school fee in advance along with some misc expenses like for insurance, and that subsidy takes 6-8 weeks to approve - that means you have to pay about $1.4K upfront (can use CDA) first, then they will refund back after subsidy is approved!