What are the total fixed cost, total variable cost and total costs of a firm? How are they related?
Total fixed cost (TFC) is that cost which does not change with a change in the level of output. Total variable cost (TVC) is that cost which changes as the level of output changes. Total cost (TC) is the sum of total fixed cost and total variable fixed cost. So, the TC curve is the vertical summation of TFC and TVC curves.