$\backslash$table$[[$Sales quantity,$2,430,$barrels$],[$Unit selling price,$$50,$per barrel$],[$Unit variable costs,$$35,$per barrel$],[$Fixed costs,$$18,225,]]$

$($a$)$

What is the contribution margin ratio?

Contribution margin ratio

$30\%$

$($b$)$ what is the brwk even point in sales dollars?