Everything can be compared to the basic ( water - flour - milk - eggs - chicken )
If a chicken is 10$ and full roasted chicken is 12$ and a burger is 15$ you know it is a scam.
If 1 kg of flour is 2$ but a small piece of bread is 7$ you know it’s a scam…
Coffee is a good example, single origin roasted coffee beans with 300gm is 17$ you can get 15 cup of it. That’s rounds up to 1$ per coffee cup. If you the coffee in a store cost more than 2$ you know it’s a scam. But you can take into account other expenses ( staff - settings - experience) and decide based on that
Wow this is anti-Semitic! How come no “Anti-Israel” in that list?