If a company increased its price from $100 to $120 and the quantity demanded fell by 40 percent, the price elasticity of demand for this product is

If a company increased its price from $100 to $120 and the quantity demanded fell by 40 percent, the price elasticity of demand for this product is




A. -1/2

B. 2

C. 1/2

D. -2

E. 4



Answer: D. -2


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