The owner of Christie' Bookstore is looking into the sales of its Health & Fitness section. She finds that her equilibrium is at 1000 magazines per month sold at an $4.25 per magazine. When the average price of these Health & Fitness magazine each, the quantity demanded fell to 900 magazines per month, while the quantity increased to 1250 a month. [ Draw an anpropriate diagram for Christie's original Health & Fitness magazi