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Alden Co.'s monthly unit sales and total cost data for its operating activities of the past year follow. Problem 18-2A Cost behavior estimation- Management wants to use these data to predict future fixed and variable costs. high-low Month Units Sold Month Units Sold Total Cost 7. ........ co 2 ... 3.............. 320,000 160,000 280,000 200,000 300,000 200.000 Total Cost $160,000 100,000 220,000 100,000 230,000 120,000 340,000 280,000 80,000 160,000 100,000 $220,000 160,000 64.000 140,000 100,000 80,000 110,000 6 ... ... ... ... Required Estimate both the variable costs per unit and the total monthly fixed costs using the high- 2. Use the results from part 1 to predict future from part 1 to predict future total costs when sales volume is (a) 200,000 units and (b) 300,000 units