Here in the US, while unit pricing is commonly displayed, I frequently find that a store will use a wide variety of units, thereby negating the ability to easil

Here in the US, while unit pricing is commonly displayed, I frequently find that a store will use a wide variety of units, thereby negating the ability to easily compare items in this way. For the same type of product I may see cost per ounce, cost per pound, cost per each, cost per dozen, etc. for various sizes and brands. It's maddening, insulting, and probably in most cases malicious.