Time to bang the drum: the Gold Standard of menu pricing as taught by the Culinary Institute of America (and others) is:
33% labour
33% ingredients/packaging
23% capital costs
10% profit for owner
The reality is that owners are greedy not that staff are overpaid.
unironically, businesses should be run as nonprofits, with profit feeding back in to grow the business, and the owner getting paid a wage, as part of Labour
If you believe that owners are entitled to more profits than that, I want to know which position will they be occupying? Cashier, manager, delivery driver, cook. Because that is how they can maximise profits, by doing the work themselves. Doesn't work for corporations but fuck corporations.