The chemical chart figure usually characterizes the elements in groups and periods.

Point and figure charts can be helpful for efficiently tracking activity. You can find one by doing a simple search; Charles Schwab have them on their site. There are also sites that allow you to create your own chart.

Data labels appear on charts. If your right click on an item in a chart, such as a bar or a pie or a line, you can choose Format Data Series and then you can choose Data Labels. You have a choice of various types of data labels to put in, such as the actual value or the percentage.

Yes, a tax chart help you to figure out how much money you owe in taxes. You can find a tax chart online.

I have never heard of a du-point chart, but a DuPont Chart illustrates the relationship between key rations and components of a business. See realted links for an interactive DuPont Chart.