A cash flow statement is a financial statement that summarizes the sources and uses of cash for a specific period, usually a quarter or a year. It is divided into three sections: OCF, CFI, and CFF. A cash flow statement helps you track the changes in your cash balance and explain the reasons behind them. To create a clear and concise cash flow statement, you should start with your net income, adjust for non-cash items, add or subtract cash flows from investing activities, add or subtract cash flows from financing activities, add up your OCF, CFI, and CFF to get your net change in cash for the period, and add your net change in cash to your beginning cash balance to get your ending cash balance. You should present your cash flow statement in a simple and consistent format, using positive or negative signs to indicate the direction of the cash flows. Additionally, you should provide an explanation for each line item, highlighting the main factors that affected your cash flows. For instance, higher sales and lower operating expenses could increase OCF by $10 million while the purchase of a new plant and equipment could decrease CFI by $5 million.