Table 8.1 Monopoly revenue, cost, and profit Price Sales Total revenue Marginal Total cost Marginal Profit S (million) ($ million) revenue ($) ($ million) cost ($) ($ million) 200 0.0 0.00 50.00 -50.00 190 0.2 38.00 190 64.20 71 -26.20 180 0.4 72.00 170 78.40 71 -6.40 170 0.6 102.00 150 92.60 71 9.40 160 0.8 128.00 130 106.80 71 21.20 150 1.0 150.00 110 121.00 71 29.00 140 1.2 168.00 90 135.20 71 32.80 136 1.28 174.08 76 140.88 71 33.20 135 1.30 175.50 71 142.30 71 33.20 134 1.32 176.88 69 143.72 71 33.16 130 1.4 182.00 64 149.40 71 32.60 120 1.6 192.00 50 163.60 71 28.40 110 1.8 198.00 30 177.80 71 20.20 100 2.0 200.00 10 192.00 71 8.00 90 2.2 198.00 -10 206.20 71 -8.20