Furniture, Inc., sells lamps for $30. The unit variable cost per lamp is $22. Fixed costs total $9,600 16 What is the contribution margin per ?lamp * 17 What is the breakeven point in * ?lamps 18 How many lamps must be sold to * ?earn a pretax income of $8,000 19 What is the margin of safety, *?assuming 1,500 lamps are sold