A product priced at $5 has annual sales of 1,000 units. When price is reduced to $4, quantity increases to 1,250 units. Other things unchanged, the price elasticity of demand for the product is:

Unitary

Explanation:

Price elasticity of demand is demand is defined as a measure of how sensitive quantity of a product demanded is sensitive to changes in price.

Usually an increase in price results in a reduction in quantity demanded, and reduction in price results in an increase in quantity demanded.

Using the midpoint method of calculating price elasticity

Price elasticity = (change in quantity demanded) ÷ (change in price)

Change in quantity demanded = (1000-1250)/(100+1250)/2

Change in quantity demanded = -0.2222

Change in price = (5-4) / (5+4)/2

Change in price = 0.2222

Price elasticity = -0.2222 ÷ 0.2222 = -1

Therefore price elasticity is unitary.

Unitary elasticity means that a a percentage change in price results in equal percentage change in quantity demanded

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