Use the following information for Questions 28 through 33. - Selling price of a unit is $100. - Unit variable costs are $60. - Total fixed costs are $400. 28. Compute unit contribution margin. (2 points) 29. Compute the break-even point in sales units. (4 points) 30. Compute the break-even point in sales dollars. ( 2 points) 31. How many total units should be sold to make a target profit of $1,200? (4 points) 32. What is the total sales revenue to make a target profit of $1,200 ? (2 points) 33. If the sales level is expected at $2,000 this period, what is the margin of safety? (1) In terms of sales dollars? (2 points) (2) In terms of sales units? ( 2 points)