Styles 12) Black Pearl, Inc., sells a single product. The company's most recent income statement is given below Sales Less variable expenses Contribution margin Less fixed expenses Net income $50,000 (30.000) 20,000 (12.500 $7,500 Required: Contribution margin ratio is b. Breakeven point in total sales dollars is c $ To achieve $40,000 in operating income, sales must total d. If sales increase by $50,000, operating income will increase by $ To achieve a $40,000 after tax income, given a tax rate of 20%, sales must total