State how each of the following items is reflected in the financial statements. (a) Change from FIFO to LIFO method for inventory valuation purposes. (b) Charge for failure to record depreciation in a previous period. (c) Litigation won in current year, related to prior period. (d) Change in the realizability of certain receivables. (e) Writeoff of receivables. (f) Change from the percentage-of-completion to the completed-contract method for reporting net income