The demand and supply are dependent on each other. If we will change one condition of supply than demand of the costumers will change too. The supply cannot exist without demand. It is like a relationship between supply and demand, when costumers are willing to buy the best goods what they can afford and the producers who are willing to sell their production possible beneficial. There are a lot of factors which determines demand of the costumers and supply of the companies. For example, price, quality, the cost of production, innovations and opportunities, and etc