Graphical tracking shows the profit loss report in graphical form. It shows a line chart with all your earnings and expenses for a given date or date range. You can easily visualize if a particular campaign is profitable over a period of time. The curves would also help you identify the profitable patterns. You can move your mouse over the curve to see earnings and expense at a given time. For ex, you can see what days of a week are not so profitable or what hours of a particular day or date are the best. Usually such patterns are repaeated over time because of change in browsing habits of people over different weekdays and time. But without graphical tracking, it is very hard to detect such patterns.