Midpoint Price Elasticity Calculator
Measure signed demand sensitivity between two price-and-quantity observations.
Your result
FINANCIALEnter your values and select calculate.
On this page How it works & practical examples
How to use the Midpoint Price Elasticity Calculator
Use comparable periods or controlled observations. The midpoint denominator treats the two observations symmetrically, and the signed result retains the observed direction.
The calculation
Worked example
Price rising from $10 to $12 while quantity falls from 100 to 80 gives signed midpoint elasticity −1.2222.
Assumptions and limits
Two observations do not identify a causal demand curve. Promotions, seasonality and supply constraints may explain the quantity change; equal prices give no finite elasticity.
Common questions
Which inputs should I use?
Use comparable periods or controlled observations. The midpoint denominator treats the two observations symmetrically, and the signed result retains the observed direction.
What does the result exclude?
Two observations do not identify a causal demand curve. Promotions, seasonality and supply constraints may explain the quantity change; equal prices give no finite elasticity.