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PED
Measures the responsiveness in quantity demanded given a change in price
PED Formula
Change in Percentage of Quantity Demanded/Change in Percentage of Price
Percentage Change Formula
Difference/Original x 100
PED always negative or positive
Negative
PED >1
Price Elastic
PED <1
Price Inelastic
PED 0
Price Perfectly Inelastic
PED 1
Unit Price Elastic

What demand is this?
Perfectly Elastic Demand

What demand is this?
Perfectly Inelastic Demand

What elasticity is this?
Elastic

What elasticity is this?
Inelastic
What happens to total revenue when demand is price elastic and price increases
Total Revenue will decrease

What does the red part mean?
Total Revenue lost

What does the green part mean?
Total revenue gained