SPC XL 2007's Pareto Chart can now work with percentage data. The previous versions required integer data.
Example
Source Data - In the dataset below, the data for Defect Rate is percentage data. If you select "SPC XL" - "Analysis Diagrams" - "Pareto" then SPC XL will create the Pareto Chart using this data.
Results
SPC XL integrates directly within Microsoft Excel. After installation, you will have a new menu item on the Excel toolbar entitled "SPC XL".
All of the control charts in SPC XL can be updated without having to recreate the chart.
All of SPC XL's analysis results in a standard Excel workbook that can be shared with anyone who has Excel.