If 1,840 additional machine hours are avalable, which product should Windsor manufacture? Windsor Company manufactures and sells two products. Relevant per-unit data concerning each product follow: Calcuate the centribution markin per machine hour for each product. Prepare an analysis showing the total contribution margin if 1,840 additional hours are: (1) Divided equally between the products. (2) Allocated entirely to the product identified in part (b)