What you can do as an alternative option is to create two charts one with the “Positive Numbers” and other one with the “Negative Numbers” and overlay them one over the another and than use the bookmark technique. By this way you’ll be able to eradicate/eliminate the white space for negative numbers that you’ve in the charts. See the screenshots below provided for the reference -
If you want to learn more about bookmark techniques below is the links of the videos provided for the reference on the topic - “Buttons and Bookmarks” techniques.
As well as also attaching the working of the PBIX file for the reference.
Hoping you find this useful as an alternative option.
