What's depressingly unsurprising about those stats is that the shittier the food, the lower the GP%.
Oh sorry, you want real cheese and not extruded plastic masquerading as a dairy-like substance? Better pay more. Want something more sustainable, like oat milk? 55% markup.
And people wonder why the poor are less healthy. Fuck these fucking ghouls.
extruded plastic masquerading as a dairy-like substance
I assume that you're referring to Kraft singles, or "American" cheese: It's just cheese, dude; mixed with a chemical (sodium citrate) to help it bind to water. The FDA refuses to allow it to be called cheese, due to the percentages involved (it's literally mostly water). Regardless, no plastic after you take the wrapper off.
The Montreal-based chemist/YouTuber NileBlue made American cheese recently in a video.