Total Fixed Costs (TFC) are costs that occur independent from your production. Fixed costs have no direct impact on production as you have to bear these costs even if your production continues at zero. For example, the rental cost of your facility building. Total Variable Costs (TVC) are costs that vary depending on production results. For example, raw material costs are directly affected by production. Total cost, on the other hand, is the cost resulting from the sum of the total fixed and variable costs. It is shown as TC (total cost). Total Cost (TC) is calculated by adding the two together.