Last Week At A Price Of 4 5 The Quantity Of Some Product Sold Was 21 7 This Week At 3300617

Last week at a Price of 4.5 the Quantity of some product sold was 21.7. This week at a Price of 18.8 the Quantity sold is 14.6. These two price/quantity combinations are points on the demand curve. What is the price elasticity of demand? Remember the answer should be a negative number and round to the nearest 0.01.