Rhinefold brews reduced calorie beer and regular beer. Sales of its reduced calorie beer represent 25% of the company's total revenue. Sales of regular beer represent the remaining 75% Reduced calorie beer has a contribution margin ratio of 80%, whereas the contribution margin ratio of regular beer is only 60%. Rhinefold's monthly fixed costs average $609,500. 9 What is the company's monthly break-even point expressed in sales dollars? S 10 What monthly sales level must be achieved for Rhinefold to carn a monthly operating income of $350,000? $ 11 If Rhinefold generates $1,400,000 in monthly sales, it will earn a monthly operating income of 12 Assume Rhinefold's margin of safety was $300,000 in May. What was the company's operating income in May? S 13 If Rhinefold's monthly fixed costs increase by $8,500, what level of monthly sales revenue will be required to break-even