If blue ridge railway's fixed costs total $50,000 per month, the variable cost per passenger is $ $10 , and tickets sell for $50 , what is the contribution margin per unit and contribution margin ratio?

Contribution margin per unit = sales - variable cost

sales are the tickets sold = 50$

variable cost per passenger = 10$

50-10 = 40$ of Contribution margin per unit

Contribution margin ratio (of total sales) =

(Contribution margin: sales) x 100=

(40/50) x 100

=80%