# How to find quantity

Order Quantity Formula To calculate the optimum order quantity Q, take the square root of the following: 2N multiplied by P and divided by H. N is the number of units

## Equilibrium Quantity

By substituting P and Q values to both demand and supply equations, equilibrium price and quantity can be found as follows. QD = 300

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## How to Find Equilibrium Price and Quantity

To calculate equilibrium price and quantity mathematically, we can follow a 5-step process: (1) calculate supply function, (2) calculate demand function, (3) set quantity supplied