My game completion rate is 97% but it should be 100%.

Many days ago, my opponent asked for a rematch but I didn't have time for it. Unfortunately, I clicked the wrong thing. I accidentally agreed to the rematch, so had to cancel that, and that made my game completion rate at 97%. Since then I have played 53 games but my game completion rate is still 97%. I thought it would go back to 100% after 20 games. Is this a bug or what? If it a bug, then I will wait until it's fixed. Many thanks.

I think for the completion rate only lost games are consideres.
But never mind. Such things happen, and you won't be thrown to hell for a single abortion.