I had a question about my taxes I claimed my 2 sisters because I help take care of them and provide and when I was finishing up my taxes gave me different amount

I had a question about my taxes I claimed my 2 sisters because I help take care of them and provide and when I was finishing up my taxes it told me the amount I’d be getting now that my state and federal got approved I go look at my turbo tax’s and it’s saying I’m getting less than what it had told me before