Toll on a bridge was increased from $.50 to a dollar and the number of vehicles crossing the bridge decreased from 520,000 to 435,000. Calculate demand elasticity for bridge use.

Respuesta :

Answer:

-0.1635

Explanation:

Given that,

Initial price = $0.50

New price = $1

Initial quantity = 520,000

New quantity = 435,000

Percentage change in quantity demanded:

= (Change in quantity demanded ÷ Initial quantity) × 100

= [(435,000 - 520,000) ÷ 520,000] × 100

= (-85,000 ÷ 520,000) × 100

= -0.1635 × 100

= -16.35%

Percentage change in price:

= (Change in price ÷ Initial price) × 100

= [(1 - 0.50) ÷ 0.50] × 100

= (0.50 ÷ 0.50) × 100

= 1 × 100

= 100%

Elasticity of demand:

= Percentage change in quantity demanded ÷ Percentage change in price

= -16.35 ÷ 100

= -0.1635