Lettuce Entertain You Enterprises Inc., a Chicago-based restaurant group, has added a 3% “processing fee” to checks at many of its restaurants. Harley-Davidson Inc. added a charge last year to its motorcycles to cover rising material costs. Peloton Interactive Inc. in January began charging $250 for delivery and setup of some of its indoor bikes, a service that was previously included free.

Companies are finding all kinds of ways to make consumers pay for rising costs. Often that is not reflected in the posted price.