Rouse Company manufactures and sells a single product. The company's sales and expenses for last year follow: (Click the icon to view the information.) Read the requirements. The total contribution margin is $ 35,000 b. What is the total variable expense? The total variable expense is $ 105,000 c. How many units were sold? 7,000 units were sold. d. What is the per-unit variable expense? The per-unit variable expense is $ 15 e. What is the per-unit contribution margin? The per-unit contribution margin is $ 5 Now fill in the missing numbers in the table. (Enter the percentages as whole numbers, "XX") Total Per Unit % Sales $ 140,000 $ 20 Variable expenses 105,000 15 % Contribution margin . 35,000 % Fixed expenses 14,000 $ 21,000 Operating income