PART 760 minutes) three models are as follow: The Plastic Company makes three sizes of chairs. Large, Medium, and Smail Data for the Selling Price per unit Medium Variable cost per unit 18 The monthly fixed costs are $ 90,000. The sales mix is 2 Large: 3 Medium 4 Small Large $130 $ 28 16 Small $ 22 13 1. Determine the break-even point (in unita) in total and by each product? wow many units of each product must be sold to earn a profit of $18,000 per month