I've seen this in the US, too. It's on the labels, typically listed in price per ounce/fluid ounce for smaller items. Maybe it's a local law (Los Angeles) becau

I've seen this in the US, too. It's on the labels, typically listed in price per ounce/fluid ounce for smaller items. Maybe it's a local law (Los Angeles) because it's that way at every super market I go to.