To create a pie chart:
From the Chart drop-down list box, select Pie.
Drag a value from Elements to the y pane in the data layout.
A Pie chart without slices is displayed.
Drag one or more label items from Elements to a data layout pane.
The Pie chart is differentiated to reflect subcategories. A legend depicting details of the selection is displayed.
Note:
Since pie charts plot data using only two axes, the z pane is disabled in the Data Layout when creating a Pie chart.