Depending on what you want to highlight on a chart, you can add labels to one series, all the series (the whole chart), or one data point.
In our example below, I add a Data Label to a column chart and then I format the data label using CTRL+1.
I then select to custom format the numbers so it shows the values as thousands by adding a comma , after each zero and then showing the work k by adding “k”
Example Custom Number Format: [$$-1004]#,##0,”k”;-[$$-1004]#,##0,”k”
Download workbookData-Labels.xlsx
John Michaloudis is a former accountant and finance analyst at General Electric, a Microsoft MVP since 2020, an Amazon #1 bestselling author of 4 Microsoft Excel books and teacher of Microsoft Excel & Office over at his flagship MyExcelOnline Academy Online Course.