How do I get the difference if I take out my 2 siblings as dependents and my mom who is on ssi and my sister who is 28 on ssdi ?

I claim. My 2 children and my siblings who are. 10 and 9 yrs old and my mom who is on ssi and my sister is disabled on ssdi . I claim them all every year I just want to know how I can remove them to see what i would just get back with my own 2 children versus all of them