Answer:
$2,000,000
Explanation:
We know that,
Pre-tax income = Sales - variable cost - fixed cost
where,
Sales = Number of units sold × selling price per unit
= 200,000 units × $15
= $3,000,000
And, the other items values remain the same
Now put these values to the above formula
So, the value would be equal to
$600,000 = $3,000,000 - variable cost - $400,000
So, the variable cost = $2,000,000