The latest Aero advert proudly boasts that it now has 33% more bubbles. Is this supposed to be a good thing? Surely, the real message is that it now contains less chocolate?
I can't imagine many people being pleased if it went up to 99% bubbles with only the skimpiest layer of chocolate holding these air pockets together.
If it weighs the same, it will contain the same amount of Chocolate. There can be more bubbles if the bubbles are smaller, giving a different texture to the same amount of Chocolate.