Why do they give you the calories of unpopped popcorn?

If you look at the side of a box of popcorn they give you the calories for 2 tsp of unpopped corn (90 calories) and then right next to it it gues you the calories for a cup of popped corn (20). Why is that? Who eats unpopped popcorn?
OH....the calories of unpopped makes sense if you're using a popper, but this is a microwavable type that comes in a bag.

According to the 'Labeling Act' the label contains information about the product inside the package. Since the microwavable pop corn bag has corn kernels, the producer has to give us the nutritional information about the unpopped pop corn even if no one eats it without popping.