The centrelink website has a max $ amount that is claimable for CCB. This is the amount you deduct the 94.47% from. It says $3.90 per hour so $3.68433 per child per hour you can claim, up to $195 per week (50 hours) for each child, $184.08 per child. As you would not be paying this amount out (3 kids and only $75 per day for all of them = $375 per week, $125 per child per week) I would guess you would be paying next to nothing. And what you would pay, you would get back 50% in the child care rebate as well.
this is the link to the centrelink/dept human resources where you can calculate your CCB/CCR entitlements, you will just need to know daily charges for the daycare centre and your estimated family income amount. It is very accurate.
If the last time you assessed your health cover was five years ago, there?s a chance it may no longer suit your needs. To ensure it?s still right for your family, click here for seven questions to ask.