Below is a Pareto Chart to help outline how to display data and get a picture of the issues. How To... Create a Pareto Chart in Excel 2010 My sources are from the above links (**) They are actual percentages from data. Next to the listed name there are two or three stars. (***) are inserted numbers just to get the chart finished. These numbers are (5) because I didn't look up the percentages. This chart is just an example to use when looking at the largest problem by frequency of occurrence.