Ability to add Percentage in Sankey chart along with absolute Value

In which part of the interface would this feature applies?

[ ] 1. Load your data [ ] 2. Choose a chart [ ] 3. Mapping [x] 4. Customize [ ] 5. Export

Is your feature request related to a problem? Please describe. A clear and concise description of what the problem is. Ex. I'm always frustrated when [...] Under the labels, add an option (another check box) to optionally inlude percentage also along with the value.

Describe the solution you'd like A clear and concise description of what you want to happen. The absolute label value should show up along with % it makes up. For example on left hand side of Sankey if 3 values are Red[3], Yellow[6], and Green[6] , the labels on it could be [3, 20%], [6, 40%], [6,40%].

Describe alternatives you've considered A clear and concise description of any alternative solutions or features you've considered.

Additional context Add any other context or screenshots about the feature request here.