Shaw's Pizza solls an average of 180 plazas per week, of which 40% are single-topping pizzas and 60% are supreme plas with multiple toppings Singles all for $11 each and incur variable costs of 58. Supremos sol for $16 ench and incur variable costs of $10. The contribution margin per unit and total contribution margin for Singles and Supremes are Singles Supremes Contribution Total Contribution Total Margin per Unit Contribution Margin Margin per Unit Contribution Margin OAS 792 324 OBS 360 360