What is the formula for calculating the cross-price elasticity of demand?

• A. Percentage change in quantity demanded of one good divided by percentage change in price of another good
• B. Percentage change in price of one good divided by percentage change in quantity demanded of another good
• C. Percentage change in income divided by percentage change in quantity demanded of another good
• D. Percentage change in quantity supplied of one good divided by percentage change in price of another good

Answer: (A)