I thought the centrelink website had the ability to calculate an estimate so one could tell if they would / will be better off on Baby Bonus vs PPL?

I start to use the online estimator and it wants to know what payments I want it to estimate - so I assume its FAO payments only? We aren't eligible to receive any other payments due to our income. However I've also tried comparing Centrelink to FAO payments too - both times I haven't gotten a "going by the info you have provided you will be $50 better off per fortnight by claiming PPL" type of response....which I was hoping for, even if it is just a guide .

HELP!