Answer

1. In the Stacked Bar Chart to 100% example workbook, right-click SUM(Sales) on the Columns shelf in the Primary Setup tab, and then click Add Table Calculation.
2. In the Table Calculation dialog box:
   • In the Calculation Type drop-down menu select Percent of Total. 
   • Under Summarize the values from select Cell or Table (Across), and then click OK.
     Note: You can also select Table (Down) if the measure is on the Rows shelf.
   • To add a label to each bar, drag a measure (for example Sales) to the Text card.

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