The document discusses the income statement, which summarizes a company's revenues and expenses over a period of time. It notes that at the end of each reporting period, all revenues and expenses are closed out to the profit and loss summary account. While this account shows whether there was a net profit or loss, it does not present the information in a clear and understandable way. Therefore, companies prepare an income statement, which lists revenues, expenses, and net profit/loss in a format that is easier for outsiders to comprehend. The income statement presents the information needed to determine the financial performance and results of operations of a company for a given period.