1.背景导入
LIFO reserve作为CFA二级的重要内容，长久以来就是考察Inventory时的重点，自今年以来又有想一级演变的趋势，2016年CFA一级考纲已经明确规定将CFA二级的Inventory内容全面挪至一级。由此，LIFO reserve在CFA一级中的重要性不言而喻。
2.相关CFA知识点
2.1.LIFO reserve
lThe difference between the reported LIFO inventory carrying amount and the inventory amount that would have been reported if the FIFO method had been used.
lLIFO reserve = FIFO inventory - LIFO inventory2.2.LIFO to FIFO Conversion
lINVF = INVL + LIFO reserve
lCOGSF = COGSL - △ LIFO reserve