Answer:
Yes buy the cushions
Explanation:
The computation is shown below:
= Manufacturing cost - purchase cost
where,
Manufacturing cost is
= Direct materials + direct labor + variable overhead cost + fixed overhead cost
= $1 + $10 + $5 + $6
= $22
The fixed overhead cost is
= $8 - $2
= $6
And, Purchase cost is $18
Savings cost is
= $22 - $18
= $4 per set
And, the number of sets is 4,000 cushion sets
So, total amount saved is
= 5,000 cushion sets ×$4 per set
= $20,000