There are four main financial statements that provide important information to both internal and external users of a business. The income statement shows revenues and expenses over a period of time, the retained earnings statement shows changes in equity from net income or losses, the balance sheet outlines assets and liabilities at a point in time, and the statement of cash flows shows cash inflows and outflows. Understanding these financial statements helps managers make good business decisions, reassures employees, and allows investors and creditors to assess risk and the financial health of a company.