Percent stacked bar chart
In a percent stacked bar chart, multiple series are stacked vertically, and the values are shown as a percentage of the whole. As you can see in Figure 8-13, the sales values are shown in percentages instead of the actual numbers as shown in the previous bar charts.
Figure 8-13  
Figure 8-14 shows how a percent stacked bar chart looks when it displays only one region series. All the bars show a value of 100%, because that is the sales percentage of one region when it is compared to itself.
Figure 8-14  
Like the percent stacked area chart, the percent stacked bar chart is meaningful only when displaying and comparing multiple series. Do not use this chart subtype if you are displaying only one series, for example, only sales for Asia.

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