After you file

SO THERE IS NO WAY TO ACCESS THE INFO I ALREADY ENTERED? I WANT TO SEE IF REMOVING A DEPENDANT WOULD HAVE GIVEN ME A LARGER RETURN BECASUE ADDING THEM I HAD TO PAY PTC OF $2956. I CANT REMEMBER WHAT MY REFUND WAS BEFORE I ADDED THE DEPENDANT... AND DONT WANT TO HAVE T0O START FROM THE BEGINING TO FIND OUT.