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The following information is available for a company's maintenance cost over the last seven months. Month June July August September October November December Units Produced 90 180 120 150 210 240 60 Maintenance Cost $ 4,830 7,620 5,760 6,690 8,550 9,480 3,900 Using the high-low method, estimate both the fixed and variable components of its maintenance cost. High-Low method - Calculation of variable cost per maintenance hour Total cost at the high point Variable costs at the high point: Volume at the high point: Variable cost per unit produced 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 produced Total variable costs at the low point Total fixed costs