6. (20 points) Harrison Company had actual sales of 8,000 units for July 2022. The selling price was $80, while the variable costs were $50 per unit. Besides that, the fixed costs were $90,000 per month. Required: Determine each of the following values: a. What was the contribution margin per unit? b. What was the breakeven point in units? c. What was the breakeven point in sales dollars? d. How many units need to be sold to obtain a net income of $120,000 ? c. Prepare a CVP income statement for July. f. What is Harrison's margin of safety in sales dollars