Final answer:
To adjust for the change from the average cost method to FIFO, the company would debit inventory and credit retained earnings by the difference in ending inventory value, which is $25,000.
Step-by-step explanation:
The student has asked what adjustment a company would make if it changes its inventory accounting method from the average cost method to the FIFO (First-In, First-Out) method. If the company had reported inventory as $342,000 using the average cost method but would have reported $367,000 using FIFO, the adjustment to be made would be an increase in the inventory balance.
The correct adjustment in this scenario would be to debit inventory for $25,000; this increases the inventory account on the balance sheet to reflect what it would have been under FIFO. Concurrently, you would credit retained earnings for $25,000, representing the change in net income from previous years resulting from the inventory adjustment.
Therefore, the answer is 'debit inventory for $25,000; credit retained earnings for $25,000'.