Bowerston Company manufactures and sells a single product. The company's sales and expenses for last year follow: Total Per Unit % $100,000 $20 ? Sales. Variable expenses. Contribution margin... 60,000 12 ? ? ? ? Fixed expenses.. 12.000 Operating income... $ 28,000 Requirements: (SHOW ALL WORK) Fill in the missing numbers in the preceding table. Use the table to answer the following questions: What is the total contribution margin? What is the per-unit contribution margin? What is the operating income? How many units were sold? Use the table to answer the following questions about break-even analysis: What is the annual break-even point in units? What is the annual break-even point in sales dollars? Use the table to answer the following questions about target profit analysis and safety mare How many units must the company sell in order to earn a profit of $50,000? What is the margin of safety in units? What is the margin of safety in sales dollars? What is the margin of safety as a percentage