The following information was drawn from the accounting records of Dark Night, Inc Income Statement Sales Revenue (310 @ $660 per unit) Cost of Goods Sold: Variable (310 @ $360 per unit) Gross Margin Sales Commissions (310 @ $40) Fixed Period Expenses Net Income $ 204,600 (111,600) 93,000 (12,400) (12,000) $ 68,600 Based on this information Dark Night's contribution margin is: Multiple Choice 0 $77,600. 0 $68,600. 0 $192,600 0 $80,600