Answer:
-1.10526
Step-by-step explanation:
The computation of the price elasticity of demand is shown below:
Price elasticity of demand is
= (Change in quantity demanded ÷ average of quantity demanded) ÷ (Change in price ÷ average of price)
where,
q1 = 5
q2 = 4.5
p1 = $2
p2 = $2.2
So,
= {(4.5 - 5) ÷ (4.5 + 5) ÷ 2} ÷ {(2.2 - 2) ÷ (2.2 + 2) ÷ 2 }
= {-0.5 ÷ 4.75 } ÷ {0.2 ÷ 2.1 }
= -0.10526 ÷ 0.0952
= -1.10526