Steps to replicate the issue (include links if applicable):

• Go to https://mpic.wikimedia.org/
• Update the table to show max (30) number of rows
• Click the "progress" column header to sort by it

What happens?:

What should have happened instead?:
9% should be sorted before 14%, which should be sorted before 100%

Software version (on Special:Version page; skip for WMF-hosted wikis like Wikipedia):

Other information (browser name/version, screenshots, etc.):