Lego Company has used the FIFO method since it began operations in 2023. Lego changed to the weighted average method in 2026. The change was justified. In its 2026 financial statements, Lego included comparative statements for 2025 and 2024. The following are the year-end inventory balances under the FIFO and weighted average methods.

Year	FIFO	Weighted Average
2023	$ 90,000	$108,000
2024	$142,000	$156,000
2025	$166,000	$150,000

By what amount should cost of sales be retrospectively adjusted for the year ended December 31, 2025?

Select one:

a. $30,000 decrease

b. $2,000 increase

c. $30,000 increase

d. $16,000 increase

e. $16,000 decrease