Path of legends win multiplier - do they count towards win rates?

My question is, at the start of the season if you finished ultimate champion, you start the next season with a win multiplier of x6 that decreases as you move up. Do these first couple games where you are winning one game and moving up 6 steps count as 6 games towards your win percentage or just one? If so is that not inhibiting how high your actual win percentage could be by removing games?

Win percentage for rating counts only from Master 2 (League 5).