Suppose that legalizing the use of heroinheroin would decrease its price by 9494 percent. if the price elasticity of demand for heroinheroin is â-2.252.25â, what would be the percentage increase in the quantity of heroinheroin demanded from legalizing heroinheroinâ? 211.5211.5 percent. â(enter a numeric response using a real number rounded to two decimalâ places.) suppose instead that the price elasticity of demand for heroinheroin is â-0.310.31. what would be the percentage increase in the quantity of heroinheroin demanded from legalizing heroinheroinâ? nothing percent â(enter your response rounded to two decimal placesâ). the higher the absolute value of the price elasticity of demand for heroinheroinâ, the greater greater less the increase in heroinheroin use that would result from legalization.