Companies often invest in the common stock of other corporations. The way we report these investments depends on the nature of the investment and the investor’s motivation for the investment. The FASB Accounting Standards Codification represents the single source of authoritative U.S. generally accepted accounting principles. Obtain the relevant authoritative literature on the disclosure of accounting policies using the FASB Accounting Standards Codification at the FASB website (www.fasb.org). 

Required: 

1. What is the specific nine-digit Codification citation (XXX-XX-XX-XX) that describes how to account for a change in the level of ownership to a percentage that will mandate use of the equity method for investments in common stock? 

2. What are the specific requirements?