I am agreeing with you. But the Government mandated labeling should be cutting thorough marketing gimmicks, and providing solid information to the consumer. It isn't.
But it fails to do this. It is only true under one specific condition. One that the consumer might not match.
An analogy to illustrate:
A supplier offers Widgets for $10 in single quantities, $9 if you buy 10-50, and $7 if you buy 51-100.
Now give me one number for the cost of a Widget. If you do, I need to reverse engineer that to figure out what quantity was being purchased. And I need the full info to do it anyhow.
The simple description is to spell it out as it is, a $ amount at each quantity. You cannot express that with one number. You could do it with an Nth order polynomial, but that is what is beyond the average consumer.
-ERD50