Key Storage Inc. produces USB drives. Sales have been very erratic, with some months showing a profit and some months showing a loss. The company$$s contribution format income statement for the most recent month is given below:

Sales $(22,000$ units$)$ $ $550,000$

Less: Variable expenses $352,000$

Contribution margin $198,000$

Less: Fixed expenses $220,000$

Net operating loss $ $(22,000)$