【答案解析】LIFO: Ending inventory=units purchased-units sold=150-120=30 units, each of which is carried at the Quarter Ⅱ price of $ 20.30×20=$ 600. FIFO: 30 units×$15/unit=$ 450.
【答案解析】LIFO: Remember the COGS is BI + purchases-El or (0+2710-600)=2110.4500-2110= 2390.
FIFO: 4500-(0+2710-450)=2240. Gross profit is higher under LIFO because costs have been falling.