The formula for calculating the shares outstanding consists of subtracting the shares repurchased from the total shares issued to date. The outstanding shares formula is represented as issued shares minus shares held in the company's treasury or treasury stock.It measures the total equity valuation (value to the equity holders) of a company. In this video, we will study the definition, types of Outstanding Shares and its impact on investors. What are Outstanding Shares(stocks)? This form is for general instructions that apply to all corporation tax forms. It includes a variety of topics about how to fill out your form. The number of basic shares outstanding is calculated as the number of shares issued (1,192,093,991) less treasury stock (428,676,471). Investments in affiliated companies must be reported using the Equity Method of accounting if the affiliate meets the definition as contained in the Glossary. Check your broker's website for shares data if not on financials.