The following is Knox Corporation's contribution format income statement for last month: 1 points Sales Less: variable expenses Contribution margin Less: fixed expenses Operating income $900,000 300.000 600,000 400.000 $200,000 The company has no beginning or ending inventories. The company produced and sold 10,000 units last month How many units would the company have to sell to attain after-tax profits of 72,000, assumingitis sublect to a 40% income tax rate? 9,440 units 11,600 units. 10,400 units 13.111 units Question 1 of 35 Moving to another question will save this response