Explanation:

Because price theory depend on the relationship of demand and supply of the product so, we can said that Price theory studies the problem of what good to produce and how much to produce.

The theory of price is an economic theory that states that the price for any specific good or service is based on the relationship between its supply and demand. The theory of price posits that the point at which the benefit gained from those who demand the entity meets the seller's marginal costs is the most optimal market price for that good or service.