Answer:
A1) On September 30, journalize the entry to record the flow of costs into the Refining Department during the period for direct materials.
Dr Work-in process: Refining Department 369,000
Cr Materials inventory 369,000
A2) On September 30, journalize the entry to record the flow of costs into the Refining Department during the period for direct labor.
Dr Work-in process: Refining Department 146,000
Cr Wages payable 146,000
A3) On September 30, journalize the entry to record the flow of costs into the Refining Department during the period for factory overhead.
Dr Work-in process: Refining Department 97,600
Cr Manufacturing overhead: Refining Department 97,600
B. On September 30, journalize the entry to record the transfer of production costs to the second department, Sifting.
Dr Work-in process: Sifting Department 614,400
Cr Work-in process: Refining Department 614,400
$30,200 - $28,400 + $369,000 + $146,000 + $97,600 = $614,400