Describe the issue. What is the expected and unexpected behavior?
from PR #3299

When using a percentage-type donut chart, there used to be primary title (the percentage) and secondary title, which indicated what the percentage actually means. This secondary title is not being shown anymore. I believe it was accidentally droped in #2375

Please provide the steps to reproduce. Feel free to link CodeSandbox or another tool.

Is this a bug or enhancement? If this issue is a bug, is this issue blocking you or is there a work-around?

What is your product and what release version are you targeting?