11. Profit maximization using total cost and total revenue curves Suppose Jayden operates a handicraft pop-up retail shop that sells cardigans. Assume a perfectly competitive market structure for cardigans with a market price equal to $20 per cardigan. The following graph shows Jayden's total cost curve. Use the blue points (circle symbol) to plot total revenue and the green points (triangle symbol) to plot profit for cardigans for quantities zero through seven (including zero and seven) that Jayden produces. 200 17 Total Revenue 150 125 Total Cost Profit 100 TOTAL COST AND REVENUE ( Dollars) O- -O O 25 0 6 7 QUANTITY (Cardigans) Calculate Jayden's marginal revenue and marginal cost for the first seven cardigans they produce, and plot them on the following graph. Use the blue points (circle symbol) to plot marginal revenue and the orange points (square symbol) to plot marginal cost at each quantity. ? 40 Marginal Revenue Marginal Cost COSTS AND REVENUE (Dollars per cardigan) 0 3 5 6 7 QUANTITY (Cardigans) Jayden's profit is maximized when they produce a total of cardigans. At this quantity, the marginal cost of the final cardigan they produce is $ . an amount than the price received for each cardigan they sell. At this point, the marginal cost of producing one more cardigan (the first cardigan beyond the profit maximizing quantity) is $ , an amount than the price received for each cardigan they sell. Therefore, Jayden's profit-maximizing quantity occurs at the point of intersection between the curves. Because Jayden is a price taker, the previous condition is equivalent to