Which of the following can be used to calculate the price elasticity of demand?

A \(\frac{\text{percentage change in quality demand}}{\text{percentage change in price}}\)
B \(\frac{\text{percentage change in price}}{\text{percentage change inquantity demand}}\)
C \(\frac{\text{percentage change in quality demand}}{\text{percentage change in income}}\)
D \(\frac{\text{percentage change in income}}{\text{percentage change in quantity demand}}\)

Correct Answer: Option A

Explanation:
The price elasticity of demand is calculated as the;
percentage change in quantity demanded
divided by a percentage change in price