Economists in Champaign have been studying the local market for pizza. The market is described in the graph: Market for Pizza 12 11.3 10.8 10 9.7 8.7 CO 8.1 7.9 6.35 5.9 Price 4.4 4.2 3 2.2 2.3 1.6 0.6 446 479 500 526 549 568 602 637 Quantity What is the price elasticity of demand(Using the Midpoint method) when the price changes from $8.1 to $6.35? Round your answer to include 2 decimal places and enter it in absolute value