17. A company revealed the following figures: Sales revenue Contribution margin Net operating income $840,000 $504,000 $54,000 How much is the company's margin of safety in dollars? A. S140,000 B. $90,000 C.$120,000. D.$336,000. E. None of the above 18. The following cost data pertain to the operations of Quinonez Department Stores, Inc, for the month of September. S 77,000 s 4,000 $ 59,000 S 11,000 $ 10,000 Corporate legal office salaries Store manager's salary-Northridge Store Heating-Northridge Store Cosmetics Department cost of sales-Northridge Stone Central warehouse lease cost Store security Northridge Store 37,000 S 16,000 S 12,000 S 4,000 The Northridge Store is just one of many stores owned and operated by the company. The Cosmetics departments at the Northridge Store. The central warchouse serves all of the company's stores Department is one of many What is the total amount of the costs listed above that are NOT direct costs of the Northridge Store? A) $152,000 B) $33,000 C) $45,000 D) $77,000 E) None of the above