Timco's current Income statement shows the following Sales $900,000 Cost of goods sold Variable costs $400,000 Fixed costs | 100,000 500,000 Gross profit 400,000 Selling and administrative expenses Variable costs 140,000 Fixed costs 100,000 240,000 Net income $160,000 Timco's current margin of safety is $400,000 $260,000 $340,000 $100,000