Answer:
degree of operating leverage (DOL) = fixed costs / total costs
Company A:
variable costs = total sales x (1 - contribution margin) = $3,300,000 x 40% = $1,320,000
fixed costs = $1,450,000
total costs = $2,770,000
DOL = $1,450 / $2,770 = 52.35%
530 - 926
Company B:
variable costs = total sales x (1 - contribution margin) = $3,200,000 x 70% = $2,240,000
fixed costs = $460,000
total costs = $2,700,000
DOL = $460 / $2,700 = 17.04%
600 - 692
Company A benefits more form a 20% increase in total sales. Currently, company A has an operating profit = $530,000. If sales increase by 20%, its operating profit will increase to $926,000.