Based on this demand schedule, set up a graph (using excel) showing this demand curve and another graph showing the corresponding total revenue curve (i.e., you need two separate graphs with quantity on the horizontal axis). (b) Calculate the price elasticity of demand between each set of points on the demand curve (i.e., between A and B, B and C, C and D, D and E, etc.) (c) Copy and paste your Excel charts (showing the Demand curve and the TR curve in separate diagrams with Quantity on the horizontal axis) into a Word or pdf file with a short essay that explains how and why the price elasticity of demand changes as you move along this demand curve. As part of your essay, make sure that you discuss how and why the effect of price changes on total revenue is tied to elasticity