Graph won't scale or move with other objects

I have two pie charts in an infographic I created in Illustrator. I'm trying to resize one whole block of info in it (which includes the two pie charts). The only way I can see to do this is by selecting everything and chosing Object > Transform > Scale. That's ok, but I'm really trying to resize it to a specific width, which I can't do with that method (I've just got % to work with).

I tried selecting the chart and expanding the object (I don't need it to be an editable chart anymore. I'm good with turning it into just a shape.) but that didn't work either. Is there any other way to resize these? Or to disconnect them from the editable chart functionality so they become just regular shapes that I can resize?