Current Attempt in Progress Determine the missing amounts. 1. Unit Selling Price $300 Unit Variable Costs 2 3. $ $500 $261 Unit Contribution Margin (c) $270 (e) (f) $300 (a) O M Current Attempt in Progress Determine the missing amounts. selling ice $300 $500 (e) eTextbook and Media Unit Variable Costs $261 Unit Contribution Margin (a) Contribution Margin Ratio % (b) $270 (c) % (d) 10 % (f) $300