How does Genshin Impact judge area completion percentage?

When zooming the world map out a bit, smaller places are merged into a location with a completion percentage. I've noticed that these percentages are part of the Travelers reputation in that region.

Here is an example of two locations in Mondstadt

What exploration things do I need to do to boost my exploration percent?

Solution 1:

Here's the things that contribute (might have missed some):

• unlocking Statues of seven
• unlocking teleports
• unlocking domains
• collecting oculli (i.e. anemoculus)
• collecting mora boxes in water (I don't think there's any in Mondstat, they appear in other regions though)
• opening chests (some chests give more completion, specifically shrine of depths ones)

Do keep in mind that even if it shows 100% you might still have stuff missing in the area