Pay workers (non-willing "Sub Players" with little choice), making and selling the sandwiches, as little as possible.
Out-source any work possible to countries with even lower wages ("Sub-sub Players?")
Under cut competition and employ predatory pricing via national advertising to eliminate small potatoes competition since you don't really care if you make a profit in the short term.
Shift any and all possible costs to others. In "The Game" such costs are called externalities. For example: pollution, health care, retirement, roads needed to reach your stores, gas to run the cars to get to your cheap prices, etcetera.
Run business at loss giving huge paydays and bonuses to "The Players" in "The Plan" until bankruptcy or death, otherwise known as the end of "The Game."
Or, cook books to show paper profit and continue making pay-offs to keep "The Players" and "Sub Players" silent for as long as possible.
Diversify using same obfuscation in as many industries and sectors as possible: retail shopping, hardware, casual dining, etc.
Employ twists to "The Game."
Find ways to have government purchase product or grant loans to purchase product from you. For example: for profit education, housing, gambling, oil, farming, military industrial products, etcetera.
Find ways to have government mandate that your product must be purchased by everyone. For example: auto insurance, home insurance, medical insurance, vaccinations, code required building products, mandatory inspections, etcetera.
Now, not all of the above is necessarily bad, building codes for example, but all of it has now been taken to an extreme with capital flowing only to "The Plans" that are playing "The Game" and are sure bets for "The Players" leaving the rest of us soon to be, if not already, "Sub Players" or "Sub-sub Players" or out in "The Cold."
So, keep using your debit and credit cards, buying fast food, going to Big Box stores, banking at corporate banks, playing the stock market with your retirement, etcetera. In the long run we are all dead. What a wonderful world to leave to your children.