I don't know if this is a design issue, a labeling issue, a legal issue, or?
Here's an example of a label that makes me go Grrrrrrrrrrr:
A can of Campbell's soup (yum, yum):
Ah, it contains 540mL of soup:
Grrrrrrrrrrr! The ingredients are listed based on 250mL:
Why aren't the ingredients listed based on 540mL (the can contents) or even 270mL (half a can)?
For some reason most soups, not just Campell's, suffer the same ingredient measurement mismatch.
At least the label is printed using FM screening. :-)