0 Requirements X on 1. Compute the number of cartons of calendars that Vast Spirit Calendars must sell each month to break even. 2. Compute the dollar amount of monthly sales that the company needs in order to earn $304,000 in operating income (round the contribution margin ratio to two decimal places). 3. Prepare the company's contribution margin income statement for June for sales of 460,000 cartons of calendars. 4. What is June's margin of safety (in dollars)? What is the operating leverage factor at this level of sales? 5. By what percentage will operating income change if July's sales volume is 11% higher? Prove your answer. Print Done