Coroid Manufacturers inc. is approached by a European customer to fulfill a one-time-only special order for a product similar to one offered to domestic customers. The company has excess capacity. The following per unit data apply for sales to regular customers Variable costs Direct materials $140 Direct labor 80 Manufacturing support 155 Marketing costs 65 Fixed costs Manufacturing support 135 Marketing costs 45 Total costa 620 Markup (49%) 279 Targeted selling price $899 What is the contribution margin per unit? $459 $180 $620 $279