Answer:
$900
Step-by-step explanation:
The computation of the total cost for both making and buying the cookies is given below:
But before that the variable cost per unit is
= (Cost of goods sold - fixed cost) ÷ (sales units)
= ($13,500 - $4,500) ÷ ($180,000 ÷ 6)
= $3
now the total cost is
= 300 × $3
= $900