Chapter 9 - Inventories: Additional valuation issues. After completing this chapter you should be able to: Describe and apply the lower-of-cost-or-market rule, explain when companies value inventories at net realizable value, explain when companies use the relative sales value method to value inventories, discuss accounting issues related to purchase commitments. | Lecture Intermediate accounting (IFRS 2nd edition): Chapter 9 - Kieso, Weygandt, Warfield