Answer and Explanation:
The computation of each point is shown below:-
a. The finished goods inventory at October 1 = $9,000 + $6,600
= $15,600
the finished goods inventory at October 31 = $4,400 + 5,700
= $10,100
b. the work in process inventory at October 1 = $3,500 + $4,400
= $7,900
the work in process inventory at October 31 = $3,200 + $4,900
= $8,100
c. the cost of goods sold for October.
Castle start operations with Job 1
= $9,000 + $6,600 + $3,500 + $7,100
= $26,200