Rockwell Corporation uses a periodic inventory system and has used the FIFO cost method since inception of the company in 1979. In 2018, the company decided to switch to the average cost method. Data for 2018 are as follows:

Additional Information:
a. The company's effective income tax rate is 40% for all years.
b. If the company had used the average cost method prior to 2018, ending inventory for 2017 would have been $130,000.
c. 7,000 units remained in inventory at the end of 2018.
Required:
1. Ignoring income taxes, prepare the 2018 journal entry to adjust the accounts to reflect the average cost method.
2. What is the effect of the change in methods on 2018 net income?

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Beginning inventory, FIFO (5,000 units@ $30) Purchases: $150,000 5,000 units@$36 5,000 units $40 $180,000 200,000 $530,000 Cost of goods available for sale Sales for 2018 (8,000 units@ $70) $560,000