I don't think I've ever seen the price per unit unit not be the across brands of the same packaging type. Now this does get dicy for individual wrapped things,

I don't think I've ever seen the price per unit unit not be the across brands of the same packaging type. Now this does get dicy for individual wrapped things, but outside of that everything uses the same unit in the same range. Even still, this is not a reasonable approach to tracking shrinkflation because I know I don't keep a running log of prices from week to week. I do sometimes notice package shrinking, but only because I buy weekly. If I wad a bulk buyer I'm not sure I'd notice as fast