Answer:
a. Â 25
b. $217,500
Explanation:
Contribution Margin Ratio = Contribution / Sales × 100
                      = ($500,000 - $375,000) / $500,000 × 100
                      = 25.00% or 25
Income statement for Pearl Company
Sales             $825,000
Less Variable Cost ($247,500)
Contribution       $577,500
Less Fixed Costs   ($360,000)
Operating Profit    $217,500