Total-, Average-, and Marginal-Cost Schedules for an Individual Firm in the Short Run Average-Cost Data Marginal Cost (5) (6) (7) Total-Cost Data Average Average Average (8) (1) (2) (3) (4) Fixed Variable Total Cost Marginal Cost Total Total Total Total Cost (AFC) Cost (AVC) (ATC) (MC) Product Fixed Variable Cost (TC) TFC TVC TC change in TC AFC= AVC ATC = MC = (Q) Cost (TFC) Cost (TVC) TC =TFC + TVC Q change in Q O $100 $ 0 $ 100 $ 90 100 90 190 $100.00 $90.00 $ 190.00 80 100 170 270 50.00 85.00 135.00 70 100 240 340 33.33 80.00 1 13.33 100 300 400 25.00 75.00 100.00 70 100 370 470 20.00 74,00 94.00 ODOVALAWN 100 450 550 16.67 75.00 91.67 90 100 540 640 14.29 77.14 91.43 1 10 100 650 750 12.50 81.25 93.75 130 100 780 880 I1.II 86.67 97.78 150 100 930 1030 10.00 93.00 103.00