Change the size of the pie-of-pie or bar-of-pie plot area
- Click a data series in the pie chart you want to change.
- On the Format menu, click Selected Data Series, and then click the Options tab.
In the Size of second plot box, enter a value between 5 and 200 to specify the size of the second pie or bar as a percentage of the first pie chart. For example, 105 makes the second pie or bar 5 percent larger than the first.