This document introduces the key financial statements prepared at the end of an accounting period: the trading account, profit and loss account, and balance sheet. It explains that the trial balance is prepared first using debit and credit columns to show asset/expense and liability/income balances. The trading account calculates gross profit by subtracting the cost of goods sold from net sales. The profit and loss account then calculates net profit by subtracting total expenses from total profits including gross profit and other income. Finally, the balance sheet presents the financial position by showing assets, liabilities, and capital/net assets.