New word: shrinkflation...Shrinkflation describes manufacturers making small changes to products, usually in quantity or size so the selling price remains the same.
An example would be a “Party Size” bag of corn chips used to be 18 ounces and now it's 15.5 ounces.
I noticed this with the bar soap I've been using for years. It was out of stock in a few stores for months and now the bars are smaller but the box is the same size.
Expect more of shrinkflation to come!