A tile manufacturer has supplied the following data: Boxes of tiles produced and sold 520,000 Sales revenue $2,132,000 Variable manufacturing expense $ 650,000 Fixed manufacturing expense $ 464,000 Variable selling and administrative expense $ 260,000 Fixed selling and administrative expense $ 312,000 Net operating income $ 446,000 What is the company's unit contribution margin? (Round your intermediate calculations to 2 decimal places.) Multiple Choice $0.86 per unit O $2.35 per unit o $4.10 per unit $1.75 per unit O