The unit decline was more than offset by the price increase. Marketing is also responsible for distributing the Company's products via wholesalers, retailers, catalogs, E-commerce, and more. All other things being equal, consumers and companies prefer products that are available where they want them, in the right quantities, when they want them, etc. In short, Marketing is responsible for finding needs in the Company's target markets and filing them, and maximizing exchanges between the Company and customers in these target markets. This includes designing and refining the Company's products, and pricing, promoting, and distributing them.
Marketing is also responsible for identifying new target markets.
This can involve Marketing in starting new companies, and acquiring outside companies. Perhaps surprisingly, Marketing can be quite technical. For example, trained Marketers who are also trained Statisticians conduct Marketing Research for larger companies such as Proctor and Gamble. Trained Marketers who are also trained Psychologists perform Consumer Marketing Research studies for such larger companies. Trained Marketers who are also trained Engineers do Logistic system design for these larger companies.