Using the point method, what is the price elasticity of demand of product X as price falls from its current price of $20 to $15? Old New Price 20 15 Quantity 10 15
A、0.5
B、1
C、1.5
D、2
A、0.5
B、1
C、1.5
D、2
【参考答案及解析】
Rationale: Percentage change in quantity = 50%. Percentage change in price
Rationale: Percentage change in quantity = 50%. Percentage change in price