McDonald's has announced major changes to its menu as sales continue to slide, including an expansion of a test that lets people build their own burgers by tapping on a touchscreen. Industry executives and analysts have noted the growing demand for customised orders, particularly among people in their 20s and 30s. They also note people are showing greater concern for the ingredients in their food. The customised burgers take longer to prepare and are more expensive, and it's not clear whether people will be willing to wait longer or shell out more money for a burger from McDonald's.
