For many years, Yelena Company manufactured a single product called a Mono-Relay. Then three years ago, the company automated a portion of its plant and at the same time introduced a second product called a Bi-Relay that has become increasingly popular. The Bi-Relay is a more complex product, requiring 1.00 hour of direct labor time per unit to manufacture and extensive machining in the automated portion of the plant. The Mono-Relay requires only 0.50 hour of direct labor time per unit and only a small amount of machining. Manufacturing overhead costs are currently assigned to products on the basis of direct labor-hours.

Despite the growing popularity of the company