Answer:
$3800 increase
Explanation:
The computation of the net income effect is shown below:
= Sales - variable cost - shipping cost
where,
Sales = Selling units × selling price per unit
= 3,800 units × $21
= $79,800
Variable cost = Selling units × variable cost per unit
= 3,800 units × $18
= $68,400
Shipping cost = Selling units × shipping cost per unit
= 3,800 units × $2
= $7,600
Now put these values to the above formula
So, the value would be equal to
= $79,800 - $68,400 - $7,600
= $3,800