Baker

Cost: 1400 coins
Constant Ingredient: Egg
Constant Ingredient: Milk

Wheat Bread:
Sell Price: 193 coins
Products used: Wheat Flour
Profit: 59 coins (30.6%)

Used in Burger Machine for all Burgers

Oat Bread:
Sell Price: 182 coins
Products used: Oat Flour
Profit: 52 coins (28.6%)

Black Bread
Sell Price: 220 coins
Products used: Rye Flour
Profit: 79 coins (35.9%)

Cornbread:
Sell Price: 298 coins
Products used: Corn Meal
Profit: 61 coins (20.5%)

(The profit I give is based on what it costs to plant the initial crop used. If the items used to create a product are not from a crop, their cost isn't factored into the profit. It's as though I'm assuming the cost is incomparable (RC to coins) or that the item is "paid off").