! Required information Problem 21-2A Cost behavior estimation LO P1 [The following information applies to the questions displayed below.] Alden Co.'s monthly unit sales and total cost data for its operating activities of the past year follow. Management wants to use these data to predict future fixed and variable costs. Month 1 Units Sold Total Cost Month 320,000 $160,000 7 Units Sold 340,000 Total Cost $220,000 2 160,000 100,000 8 280,000 160,000 3 280,000 220,000 9 80,000 64,000 4 200,000 100,000 10 160,000 140,000 5 300,000 230,000 11 100,000 100,000 6 200,000 120,000 12 110,000 80,000