Use the following information for Questions 1 through 6. Selling price of a unit is $100. Unit variable costs are $60. Total fixed costs are $400. 1. Compute unit contribution margin. (2 points) 2. Compute the break-even point in sales units. (4 points) 3. Compute the break-even point in sales dollars. (2 points) 4. How many total units should be sold to make a target profit of $1,200? (4 points)