
Answer:
Yes, the special order must be taken. Because Special order is bringing an additional contribution of $100
Explanation:
Units                         110 units    120 units
Revenue                      $11,000    $11,400
Less Variable Costs             ($3,300)    ($3,600)
Contribution margin             $7,700     $7,800
Less  Fixed costs               ($1,600)    ($1,600)
Profit                          $6,100     $6,200
Therefore, the Financial advantage of manufacturing 120 units from 110 units is $100
That means the Special order is bringing an additional contribution of $100.
Values of Sales and Variable costs have increase by the following as a result of special offer :
Sales = $400
VC = $300