Last time I read the financial reports for a gas station it was about 1/3 each, gas, tobacco, and food. Tobacco has gone way down since then, but the other two

Last time I read the financial reports for a gas station it was about 1/3 each, gas, tobacco, and food. Tobacco has gone way down since then, but the other two are still important. Gas is low margin, but high volume and so they make a lot of profit on it.