1. I want to be able to compare w other brands 2. I don’t want any filler at all!
If chocolate goes up in price, I’ll pay more to get the real stuff, or buy less of it. I most certainly won’t buy a bar of food wax with chocolate solids, or whatever Hershey is
Depends where you live but many brands actually indicate their content of chocolate directly on the box (70%, 80% etc... unless you buy milk chocolate.
As for not wanting any filler at all: then buy pure cocoa beans! If you buy processed food you should always assume there is some kind of "filler". And not that "fillers" are also necessary sometimes to give a proper texture to what you eat and make sure the taste is consistent from one box to another.