Enter the percentage change in supply (%) and the percentage change in price (%) into the Calculator. The calculator will evaluate the PES.

PES Formula

PES = S / P

Variables:

  • PES is the Price Elasticity of Supply ()
  • S is the percentage change in supply (%)
  • P is the percentage change in price (%)

To calculate PES, divide the percentage change in supply by the percentage change in price.

How to Calculate Price Elasticity of Supply?

The following steps outline how to calculate the PES.


  • First, determine the percentage change in supply (%). 
  • Next, determine the percentage change in price (%). 
  • Next, gather the formula from above = PES = %S / %P.
  • Finally, calculate the Price Elasticity of Supply.
  • After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

percentage change in supply (%) = 30

percentage change in price (%) = 40