
Answer:
$90 and $108
Explanation:
The computation of the costs of goods sold is shown below:
At Sales volume of 50 units:
= Selling price per unit Γ number of units Γ given percentage
= $3 Γ 50 units Γ 60%
= $90
At Sales volume of 60 units:
= Selling price per unit Γ number of units Γ given percentage
= $3 Γ 60 units Γ 60%
= $108
Simply we multiplied the selling price per unit with the number of units and the given percentage so that the correct amount can come