Variable costs change with productivity. Fixed costs remain the same. If you are a baker, for example, the cost of flour is variable depending on how many cupcakes you make. The rent for your store, however, is fixed. You pay the same amount of rent whether you are baking cupcakes, or not.


Flour / Variable Expense

Bakery Rent / Fixed Expense



Suppliers increase or decrease production to meet their fixed and variable costs, to meet the product demand, and to earn the highest profits they can.