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Whirly Corporation's contribution format income statement for the most recent month is shown below: Required: (Consider each case independently): A)What would be the revised net operating income per month if the sales volume increases by 90 units? B)What would be the revised net operating income per month if the sales volume decreases by 90 units? C)What would be the revised net operating income per month if the sales volume is 7,500 units? Mauro Products distributes a single product, a woven basket whose selling price is $19 per unit and whose variable expense is $17 per unit. The company's monthly fixed expense is $2,400. Required: A) Calculate the company's break-even point in unit sales. B) Calculate the company's break-even point in dollar sales. (Do not round intermediate calculations.) C) If the company's fixed expenses increase by $600, what would become the new break-even point in unit sales? In dollar sales? (Do not round intermediate calculations.)