For each of the six independent situations that follow, compute the missing amounts. a. Using contribution margin per unit: b. Using the contribution margin ratio: Complete this question by entering your answers in the tabs below. Required A Required B Using contribution margin per unit: Sales Operating Income Units Sold Contribution Variable Margin per Fixed Costs Costs unit $ 120.000 $ 20 45.000 30 150,000 (1) (2) (3) $ 25,000 30,000 90.000 4.000 5,000 180.000 600.000 Required B For each of the six independent situations that follow, compute the missing amounts. a. Using contribution margin per unit: b. Using the contribution margin ratio: Complete this question by entering your answers in the tabs below. Required A Required B Using the contribution margin ratio: Sales Variable Costs Contribution Margin Ratio (%) per Unit Fixed Costs Operating Income $ 720,000 % $ (1) $ 900.000 (2) 600.000 (3) 40 % 30 % 95,000 75,000 60.000 90.000