Answer 1

Varies from 10% to 5% depending on your area and what Pokemon live in that area.

For example,you have a 5% chance to encounter a slaking in pinwheel forest,but you have a 10% chance of finding the monkeys(Pansage,Pansear,Panpour) in pinwheel forest.So it varies.

Comments

Where is your source?

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Thanks Exca le roi.