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Infinix Calculators
Economics & Finance

Price Elasticity of Demand Calculator

Calculate Price Elasticity of Demand (PED) using the midpoint arc formula. Determine elasticity category and revenue impact.

Interactive Calculator

1. Provide Details

$
$
units
units

2. Output Results

Price Elasticity Coefficient (PED)-1.22
Demand ClassificationElastic Demand (|PED| > 1 - Price Sensitive)
Net Revenue Impact-$40.00 $

How to Calculate: Formula & Steps

Applies the standard midpoint arc elasticity formula to avoid direction bias between initial and final price-quantity points.

Formula Used:PED = [ (Q2 - Q1) / ((Q1 + Q2)/2) ] ÷ [ (P2 - P1) / ((P1 + P2)/2) ]

Step-by-Step Calculation Example

If price increases from $10 to $12 (+18.2%) and sales drop from 100 to 80 units (-22.2%), PED is -1.22 (Elastic demand, total revenue decreases).


Common Mistakes to Avoid

  • Confusing percentage change with absolute unit changes when analyzing price increases.

Practical Use Cases

  • E-commerce product pricing strategy
  • Economics coursework and business revenue optimization

Expert Tips

  • For inelastic goods (|PED| < 1), raising prices increases total gross revenue.

Frequently Asked Questions About Price Elasticity of Demand Calculator

What does a PED greater than 1 mean?

A PED absolute value > 1 indicates Elastic demand, meaning consumers are very sensitive to price changes.