问题如下：
7. Ignoring any tax effect, the 2009 net realisable value reassessment for the black licorice jelly beans will most likely result in:
选项：
A.an increase in gross profit of CHF 7,775.
B.an increase in gross profit of CHF 11,670.
C.no impact on cost of sales because under IFRS, write-downs cannot be reversed.
解释：
A is correct.
Gross profit will most likely increase by CHF 7,775. The net realisable value has increased and now exceeds the cost. The write-down from 2008 can be reversed. The write-down in 2008 was 9,256 [92,560 × (4.05–3.95)]. IFRS require the reversal of any write-downs for a subsequent increase in value of inventory previously written down. The reversal is limited to the lower of the subsequent increase or the original write-down. Only 77,750 kilograms remain in inventory; the reversal is 77,750 × (4.05–3.95) = 7,775. The amount of any reversal of a write-down is recognised as a reduction in cost of sales. This reduction results in an increase in gross profit.
老师，好：
reverse使NRV上升了0.1，我理解。但直接乘以ending inventory就得出profit increased value我没太理解。gross profit increased不应该是COGS的减少值么？
还有第一个条件FIFO cost of inventory该怎么理解。谢谢。
