Answer:
the question is incomplete, so I looked for a similar question:
"Pizza sells an average of 150 pizzas per week, of which 20% are single-topping pizzas and 80% are supreme pizzas with multiple toppings. Singles sell for $8 each and incur variable costs of $2. Supremes sell for $12 each and incur variable costs of $6."
contribution margin for Singles = $8 - $2 = $6
contribution margin ratio for Singles = $6 / $8 = 75%
total contribution margin for Singles = $6 x 150 x 20% = $180
contribution margin for Supremes = $12 - $6 = $6
contribution margin ratio for Supremes = $6 / $12 = 50%
total contribution margin for Supremes = $6 x 150 x 80% = $720
