1. The document calculates total fixed cost (TFC), total variable cost (TVC), and marginal cost (MC) for a company with an average fixed cost (AFC) of 60 and multiple levels of output.
2. TFC is calculated as AFC x Output for each level. TVC is calculated as Total Cost (TC) - TFC. Marginal Cost is calculated as the change in Total Cost between levels of output.
3. The calculations show TFC and AFC remaining constant while TVC and MC change with different levels of output. The sum of MC equals TVC, and TC equals the sum of TFC and TVC.