Costing Methods (FIFO, Historic Averaging etc)

I would like to ask in which level(s) of the CFA Exam is the issue of inventory costing as it relates to securities accounting addresses. In particular, I’ve seen this topic usually in the context of a Realized and Unrealized P/L on a trading account, but never really understood how to carry out the calculations using all the usual costing methods (FIFO, LIFO, Historic Average, Most Expensive First, Least Expensive First) etc. I am sure is part of the CFA but not sure which level / section etc. If anyone has any suggested reading (outside of the CFA) that would also be appreciated


first section of fsa for level one, they cover all the basic accounting topics in that section, revenue recognition, accrual accounting, basics of us gaap and the difference with ifrs.