Lab of legends 78% Done, how many more paths?

Resternboy32

So my brother did lab of legends a couple years back. He wants to go back in there to get the 5 star ultron prime because he thinks he looks cool. he has the right champs to go, but we are trying to figure out how many paths he has left to do, our guess is 2. He doesn’t remember because this was years ago. It is showing him 78% done. I know there is 7 paths. Please help us and tell me how many paths are left?

Bendy

U can move around the map as its unlocked