Assume that the absolute value of price elasticity of demand for a com...
Given Information
Absolute value of price elasticity of demand = 1
Price = Rs.4
Demand = 300 units
Calculation of Price Elasticity of Demand
Price Elasticity of Demand = % change in quantity demanded / % change in price
Given, absolute value of price elasticity of demand = 1
Therefore, % change in quantity demanded = % change in price
Calculation of % Change in Quantity Demanded
% Change in Quantity Demanded = (New Quantity Demanded - Old Quantity Demanded) / Old Quantity Demanded x 100%
Let's assume that the new price is Rs.3 and we need to calculate the new quantity demanded.
% Change in Quantity Demanded = (New Quantity Demanded - 300) / 300 x 100% = -25%
This means that if the price falls from Rs.4 to Rs.3, the quantity demanded will decrease by 25%.
Calculation of New Quantity Demanded
% Change in Quantity Demanded = % Change in Price (Given)
Therefore, % Change in Price = -25%
% Change in Price = (New Price - Old Price) / Old Price x 100%
-25% = (New Price - 4) / 4 x 100%
New Price = Rs.3
Using the original price and quantity demanded, we can calculate the price elasticity of demand as follows:
Price Elasticity of Demand = % change in quantity demanded / % change in price
Price Elasticity of Demand = -25% / -25% = 1
Conclusion
If the price falls from Rs.4 to Rs.3, the new quantity demanded will be 225 units (25% decrease from the original demand of 300 units).