Price Elasticity of Demand Calculator
PED = %ΔQ ÷ %ΔP.
PED measures how quantity responds to price.
How the Math Works
Price elasticity of demand measures how responsive the quantity demanded of a good is to a change in its price. The calculation divides the percentage change in quantity demanded (%ΔQ) by the percentage change in price (%ΔP). A PED greater than 1 indicates elastic demand (quantity changes more than price), while a PED less than 1 shows inelastic demand (quantity changes less than price). When PED equals 1, demand is unit elastic. The formula can be calculated using the midpoint method for more accurate results across price ranges.
Practical Applications
To use this calculator, determine the initial and new prices of your product, then find the corresponding quantities sold at each price point. Calculate the percentage changes by finding the difference between quantities divided by the average quantity, and the difference between prices divided by the average price. Input these values into the calculator to determine if your product's demand responds significantly to price changes, helping you optimize pricing strategies, forecast revenue impacts, and make informed decisions about promotions or price adjustments.
Day-to-Day Use
Understanding price elasticity helps consumers make smarter purchasing decisions by recognizing when prices are likely to drop, and businesses set competitive yet profitable prices. If a product has inelastic demand (like essential medicines), you know price changes won't drastically affect your purchases. For elastic goods (like luxury items), you might wait for sales or compare prices more carefully. This knowledge empowers better budget planning and helps identify which products offer the best value for money.
FAQ
Elastic demand?
Buyers are price-sensitive — price increases lose more revenue.