Answer:
$11,760
Explanation:
The sales less the variable cost gives the contribution margin. The contribution margin less the fixed cost gives the net operating income/profit.
Without the new offer
Profit = 5000($29 - $15) - $20,900
= $70,000 - $20,900
= $49,100
For the new order a variable selling cost of $2 per unit would be eliminated, the contribution of the order will be
= 1680($20 - $15 + $2)
= 1680 * $7
= $11,760
This is the differential effect on profit.