"Increases the accuracy of all moves used by this Pokémon by 30%. This is a multiplicative increase, not additive, meaning if a move has 50% accuracy before Compoundeyes, it is brought to 65% total accuracy afterward. When a Pokémon with this ability is first in the party, wild Pokémon will have a higher chance of holding an item."
70%*.3%=21+70=91%
Yeah, 91% chance.
