Start Pie Chart Values at the Top of the Pie (Report Builder and SSRS)
By default in pie charts, the first value in the dataset starts at 90 degrees from the top of the pie. You may prefer that the first value start from the top.
You can create and modify report definitions (.rdl) in Report Builder and in Report Designer in SQL Server Data Tools. Each authoring environment provides different ways to create, open, and save reports and related items. For more information, see Designing Reports in Report Designer and Report Builder (SSRS) on the Web at microsoft.com.
To Start the Pie Chart at the Top of the Pie
Click the pie itself.
If the Properties pane is not open, on the View tab, click Properties.
In the Properties pane, under Custom Attributes, change PieStartAngle from 0 to 270.
Click Run to preview your report.
The first value now starts at the top of the pie chart.