Another reason to limit your consumption of packaged (processed) foods:
I have to admit that I'm not terribly surprised, though. Nothing is perfect, and I'm sure that the amounts differ from box to box, even within the same food item. Even if it's not accurate, at least people are LOOKING at what they buy and eat. And any time you make a conscious decision, you've made a winning choice.
I make it a point to take everything I read with a grain of salt - look at calorie counts and your daily allotment like a coloring book. The lines are there for guidance, and it's your job to color within them.