a. C. Bivouac Camping Supply sells marine-grade hatches. The hatches sell for $20 each. The cost of each hatch is $12. The only other costs are fixed costs of $15,000. During the current period, Bivouac sold 2,400 units. Required: What is the contribution margin per unit? b. What is the contribution margin ratio? What is the breakeven point in units? d. What is the breakeven point in dollars? What is the margin of safety in dollars? f. How many units must be sold to achieve a target net income of $8,400? 9 Calculate the breakeven point in units if the variable costs decrease by $2 per unit and the fixed costs increase by $1,000. h. Assuming that Bivouac Camping Supply has a net income of $8,400, calculate the degree of operating leverage before and after the cost changes noted in part g e