$1.$ Unit Price: $$350$ Unit Variable costs: $$273$ Unit Contribution Margin:$\_\_\_\_\_($a$)$ Contribution Margin Ratio:$\_\_\_\_\_\%($b$)$

$2.$Unit Selling Price: $$530$ Unit Variable Costs:$$\_\_\_\_\_\_\_($c$)$ Unit Contribution Margin: $$212$ Contribution Margin Ratio: $\_\_\_\_\_\_\%($d$)$

$3.$ Unit Selling Price:$$\_\_\_\_\_\_($e$)$ Unit Variable Costs: $$\_\_\_\_\_\_\_\_\_($f$)$ Unit Contribution Margin: $$309$ Contribution Margin Ratio: $30\%$