Requirement 3. Prepare the company's contribution margin income statement for June for salos of 450,000 cartons of calendars. Requirement 4. What is June's margin of safety (in dollars)? What is the operating leverage factor at this level of sales? Begin by determining the formula. What is the operating leverage factor at this level of sales? Begin by determining the formula. Fast Spint Caiendars imprints calendars with colloge names. The company has food oxpenses of $1,125,000 each month plus variable expenses of $4.50 per canton of calendars. Of the variable expense, 65% is cost of goods sold, while the remaining 35% relates to variable operating expenses. The company sells each carton of calondars for $19.50. Read the resuitements Requirement 1. Compute the number of cartons of calendars that Fast Spint Calendars must sell each month to breakeven. Begin by determining the basic income staterrent equasion. Using the basle inceme statement equation you determined above solve for the number of cartons to break even. The breakeven sales is cartons. Requirement 2. Compule the dollar amount of monthly sales Fast Spirit Calendars needs in order to eam $330,000 in operating income. (Round the operating leverage factor to three decimal places.) The operating leverage factor is Requirement 5. By what percentage will operating income change if If volume increases 15%, then operating incorne will increase Prove your answer, (Round the percentage to two decimal places.)