weight won't change even after changing density

Hi Guys,

This could be something so easy but at the same time I can not figure out yet.

I have applied a custom material on this part which is typical steel property.

And after that no matter what I do the total weight won't chnage with this weired density.

(sample attached)

I guess this is where you guys experts come in.

Thank you in advance.

SolidworksGeneral