The contribution margin income statement of Krazy Kustard Donuts for August 2024 follows: (Click the icon to view the contribution margin income statement.) Krazy Kustard sells eight dozen plain donuts for every three dozen custard-filled donuts. A dozen plain donuts sells for $3.70, with total variable cost of $1.48 per dozen. A dozen custard-filled donuts sells for $7.00, with total variable cost of $2.80 per dozen. Read the requirements.