Product Deosions Under Botlleascked Operations Mirs operations require al thee grades to be melted in a furnsce before being formed. The furnace runs 24 hours a daw, 7 days a werk, and is a aroduction baithinge, The furnace hours rouired per unit of each product are as follows: The Marketing Depsrtment is conuldering a new marketing and sales campaigh. Determining the unit coetribution margin per furnace hosir will assiat in making vour dectsion. Round the unit contribution margin to two decimal places. Which product should be emphastied in the morketing and sales campalgn in order to nuximuse proctability