McDonald’s is trying to make more uniformity across its system, and says it’s taking a global approach to how its app and other digital systems are funded by franchisees in the U.S. and four other countries next year. U.S. franchisees will pay a percentage of their digital sales for the app and other services, while McDonald’s says it will invest in new digital products and functions, the company says in a message viewed by WSJ. Restaurants increasingly rely on digital sales, as they are more efficient and allow for targeted marketing to consumers.