Contribution Net Operating Units Case Sold Variable Sales Expenses Margin Fixed Income per Unit Expenses (Loss) 1 9,000 2.... ? $270,000 $162,000 $350,000 ? ? $15 $90,000 $170,000 ? $40,000 3. 20,000 ? $280,000 $6 ? $35,000 4. 5,000 $160,000 ? ? $82,000 $(12,000) Average Contribution Net Operating Variable Margin Fixed Income Case Sales Expenses (Percent) Expenses (Loss) 1....... $450,000 ? 40% ? $65,000 2...... $200,000 $130,000 ? $60,000 ? 3. ? ? 80% $470,000 $90,000 4... $300,000 $90,000 ? ? $(15,000)