You can change the type of data used in the labels in your chart. The choices available depend on the chart format.
To change a data label:
Double-click a chart element in the legend, or select an element in the chart (such as a bar or a pie slice) and select Chart, then Properties.
Select the fill pattern and color for the chart segment, line, or marker.
Pie Charts—Shows pie slice labels, values, percentages, negative values, and lines that connect a data label to its pie slice.
Bar Charts—Shows individual bar values and the placement of the values inside the bar.
Line Charts—Shows values and ignore null values, and select the placement of the values relative to the line.
For line charts, use the Axis page to specify whether to plot values on the primary (left) axis or secondary (right) axis.