Supposing we have created a clustered column chart for a sales table in Excel as below screenshot shown, and we can apply the Add Cumulative Sum to Chart tool to quickly add the running total line with accumulated sum labels in the column chart at ease.

1. Select the clustered column chart you will add the accumulated total line for.

2. Click Kutools > Charts > Chart Tools > Add Cumulative Sum to Chart.

3. In the popping out Kutools for Excel dialogs, click Yes and OK button successively.
 

And then you will see the accumulated total line and labels added in the clustered column chart. See screenshot:

1. This Add Cumulative Sum to Chart tool can add accumulated total line and labels for the clustered column chart only.

2. This Add Cumulative Sum to Chart tool does not support undo. If you need to undo, you can select the accumulated total line in the chart, and then press Delete key to remove it directly.

3. When adding the accumulated total line and labels for the selected chart, it generates some intermediate data in a hidden sheet, and you can get the data as follows:
(1) Right click any sheet tab in the Sheet Tab bar, and select Unhide from the context menu;
(2) In the Unhide window, click to select the Kutools_Chart sheet, and click the OK button.

And then you will get the intermediate data in the Kutools_Chart sheet. See screenshot: