When closing stocks are valued at Net realizable value which is less than cost , how can adjust this difference in financial statement ?

when valuing closing stock there  are damaged inventory.or obsolete inventory.it must be valued at its current condition.that is selling price in current market (if any) or valued by specialist.this is called net realizable value.it may  be less than cost if inventory is damaged are obsolete.and the difference is recognize as  loss in income statement.if loss is material sepratly disclosed in income statement.

Recognize it as a loss on the Income Statement. 

Stock Adjustment Expence A/C Dr

To Stock A/c Cr