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Use the following to answer questions 72-74: A tile manufacturer has supplied the following data: Boxes of tiles produced and sold. Sales revenue.... Variable manufacturing expense. Fixed manufacturing expense Variable selling and administrative expense. Fixed selling and administrative expense Net operating income. 72. What is the company's unit contribution margin? A) $0.23 B) $4.90 C) $3.10 D) $1.80 Answer: D Level: Easy LO: 1 73. The company's contribution margin ratio is closest to: A) 29.4% B) 4.7% C) 63.3% D) 36.7% 580,000 $2,842,000 1,653,000 784,000 145,000 128,000 $132,000 Answer: D Level: Easy LO: 3 74. If the company increases its unit sales volume by 5% without increasing its fixed expenses, then total net operating income should be closest to: A) $6,600 B) $184,200 C) $134,422 D) $138,600 Answer: B Level: Medium LO: 1