I'm just confused how to calculate this.

ded by the price of X. lange in quantity /percentage change in quantity demanded of X divided by the percentage change in the price of A. if the price elasticity of demand for airline travel is 1.5, a 10% increase in the price of airline travel will result in: 1. 5 = Elastic a a 15% decrease in the consumption of airline travel. 6. a 10% decrease in the seller's profit from the sale of the airline travel. c. an increase in the seller's total revenue from the sale of airline travel. meals it's gould d. a 1.5% increase in consumption of airline travel. e. none of the above Qd significall Suppose that as the price of Y falls from $2.00 to $1.90 the quantity of Y demanded increases from 110 to 1 price elasticity