QS 21-3 Cost behavior estimation-high-low method LO P1 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 90 190 120 150 210 240 60 Maintenance Cast 3.710 5,240 4.220 4,730 5.750 6,260 3,200 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 Vanable 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