How to sort numbered list on Google Docs in reverse order

I’d like my google docs (https://docs.google.com) numbered list to count backwards: largest number first, 1 last. Ex: 3, 2, 1, instead of 1, 2, 3. Any way to do that?

Here is a sample document for you to play with as we try to figure it out.

Click File –> “Make a copy”, then edit and play with your own copy.