The total number of units purchased at that price is called the quantity demanded.
Demand refers to the quantity of the goods and services that a customer is willing and ready to buy at the given price during the particular period of time.
Quantity demanded refers to the amount of goods and services that customers/ people will buy at particular price and at particular point of time.
The formula to find the demand is = Qd = x + yP, where Qd is demand, x is quantity and yP is the price.
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