Check my work 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 2 3 4 5 6 Units Sold 320,500 165,500 265,500 205,500 290,500 190,500 Total Cost $ 158,000 101,750 206,100 100,500 202,000 112,500 Month 7 8 9 10 11 12 Units Sold 359,500 270,500 75,900 150,500 94,500 100,500 Total Cost $274,364 152, 250 64,500 131, 125 94,500 81,150 . Estimate both the variable costs per unit and the total monthly fixed costs using the high-low method. (Do not round intermediate alculations.) High-Low method - Calculation of Variable Cost per unit 0 High-Low method - Calculation of Fixed Costs Total cost at the high point Variable costs at the high point: Volume at the high point: Variable cost per unit Total variable costs at the high point Total fixed costs Total cost at the low point Variable costs at the low point: Volume at the low point: Variable cost per unit Total variable costs at the low point Total fixed costs