
Answer:
Riker Corporation's Contribution Margin at 15,800 level of activity is           $995,400 ($63 per unit) and Contribution Margin (%) is 42%  Â
Explanation: Â
Contribution at Sales Volume of 15,800: Â
Sales Revenue (15,800 × $149)                  $2,354,200   Â
Cost of Sales (Working 1) Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â $(1,358,800) Â
Contribution Margin                          $995,400 Â
Contribution Margin (per unit) Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â $63 Â
Contribution Margin (%) Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 42% Â
Â
Working 1
Sales Volume (Units) Â Â Â Â Â Â Â Â Â Â Â Â 14,800 Â Â Â Â Â Â Â Â Â 16,310 Â Â
Cost of Sales ($) Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â $1,272,800 Â Â Â Â Â Â Â $1,402,660 Â Â
Cost of Sales per unit              $86           $86 Â
(Cost of Sales ÷ Sales Volume)
*Figures in brackets represent negative figures