explain the formula that you use

F G H $30,00 Firm Sale price per unit Variable operating cost per unit Fixed operating cost $18,00 6,75 $21,00 13,50 12,00 90 000 45 000 30 000 a. What is the operating breakeven point in units for each firm? b. How would you rank these firms in terms of their risk? Solution a. What is the operating breakeven point in units for each firm? Breakeven number of units (Q) Firm F Firm G Firm H b. How would you rank these firms in terms of their risk