20. Price elasticity of demand is the: Percentage change in price of that good divided by the percentage change in the quantity of that good demanded. Change in the quantity of a good demanded divided by the change in the price of that good. Change in the price of a good divided by the change in the quantity of that good demanded. Percentage change in quantity of a good demanded divided by the percentage change in the price of that good.

20. Price elasticity of demand is the:
Percentage change in price of that good divided by the percentage change in the quantity of that good demanded.
Change in the quantity of a good demanded divided by the change in the price of that good.
Change in the price of a good divided by the change in the quantity of that good demanded.
Percentage change in quantity of a good demanded divided by the percentage change in the price of that good.

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