The following information is available for a company's maintenance cost over the last seven months Month June July August September October November December Unit Produced 90 150 110 140 200 230 50 Maintenance Cost $ 4,190 6.260 4,880 5,570 6.950 7,640 3,500 Using the high-low method, estimate both the fixed and variable components of its maintenance cost Change in cost Change in volume High-Low method - Calculation of variable cost per maintenance hour Cost at high point minus cost at low point Volume at high point minus volume at low point 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 bed 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 foxed cost