Seems like you get meatninja at 99% at least from my and a few other`s experience.
This means you can have missed 4 levels, or 4 bandages. Or any combination of those.
1 level and 3 bandages etc. A bit unsure about glitch worlds, and the exact math behind this.
Look like math is like that:
Golden god = 100% = Round(Progress - Glitches completed)
So if progress after glitch percentage removed (6%) is bigger than 99.5% then it round up to 100% and awarding golden god which is equal to 4 levels or 4 bandages missing :)
Example for me only skyscraper remained it is 3 levels and 2 bandages and after i complete skyscraper with 1 bandage it gave me golden god. (3 levels + 1 bandage)