In fall 2006, Pace University in New York raised its annual tuition from $24,600 to $29,200. Freshman enrollment declined from 1,500 in fall 2005 to 1,100 in fall 2006. Assuming that the demand curve for places in the freshmen class at Pace did not shift between 2005 and 2006, use this information to calculate the price elasticity of demand. Use the midpoint formula in your calculation. The price elasticity of demand for Pace University for the fall of 2006 is ___ (Hint: include the negative sign and enter your response rounded to two decimal places.)