Change in Quantity Demanded

Definition: Quantity Demanded is seen in the following direct relationship:
Demand Increase~Quantity Increase at Same Price
Demand Decrease~Quantity Decrease at Same Price


Article Examples:

Business respond to an either increase or decrease in quantity demanded by appealing to consumer tastes. Ex. Music stores are appealing to people who desire vinyl records, so an increase in quantity demanded is seen.

Also finding way to conform to quantity demanded and increase sales is turning to the internet.

Another article illustrating this topic of change: