How to Add Labels to Show Totals in Stacked Column Charts in ... 9. Next, select the labels and then, in the Format Data Labels pane, under Label Options, set the Label Position to Above. 10. While the labels are still selected set their font to Bold. 11. Next, select the "Total" data series and set its Shape Outline to No Outline in the Shape Styles group under the Format tab. The chart should look like this: