Now identify a good that is often consumed with another good or service (for example, peanut butter and jelly are complementary goods). How does the price of the complementary good affect the demand for the good you selected originally? In your post, explain the relationship between the two goods in the two scenarios above. Discuss how a price change for one good can affect demand for another. Please note, anytime you only have a price change for product X, that is a CHANGE IN QUANTITY DEMANDED. If the price of a related good changes, that is a CHANGE IN DEMAND