You can stack the value series that you display in a chart. In a stacked chart, the data points from one value series are arranged on top of the data points of another series. Stacking helps to show each data point’s contribution to the total of all the data points in a category.

You can stack only area, bar, cone, pyramid, tube, and line series. To stack a series, navigate to the Series section of Format Chart, locate the series, then select Stacked.