Net Income Planning Superior Corporation sells a single product for $60 per unit, of which $36 is contribution margin. Fixed costs total $108,000 and net income before income tax is $28,800 Determine the following a. The present sales volume in dollars. $ 0 b. The break-even point in units. 0 units c. The sales volume in units necessary to attain a net income before income tax of $39,600 0 units d. The sales volume in units necessary to attain a net income before income tax equal to 20% of sales revenue. 0 e. The sales volume in units necessary to attain an after-tax net income of $43,200 if the tax rate is 40% units units Check