Problem 9-14 (Algo) Change in methods [LO9-6] Rockwell Corporation uses a periodic inventory system and has used the FIFO cost method since inception of the company in 1979 . In 2024 , the company decided to switch to the average cost method. Data for 2024 are as follows: Additional Information: a. The company's effective income tax rate is 25% for all years. b. If the company had used the average cost method prior to 2024 , ending inventory for 2023 would have been $115,000. c. 6,000 units remained in inventory at the end of 2024 . What is the effect of the change in methods on 2024 net income