Cost-Curve Shifters The following graph shows the average total cost curve, average variable cost curve, and average fixed cost curve for Hilary's Pizza Parlor when the retail price Hilary pays for pepperoni, including sales tax, is $7 per pound. Now suppose the sales tax on the pepperoni is removed, so the price of the pepperoni decreases to $6 per pound. Fill in the following table with the information on how each curve Is affected, if at all. cost Effect on Cost and Curve ATC AVC AFC