Here is the formula for Evasion anad the likeliness of hitting a Pokemon:

Where:

**A** = is the base accuracy of the move (in percent - e.g. a base accuracy of 95 is counted as 0.95)

**Accuracy** = The amount of boost/fall the accuracy of the move has at that moment (in percent - e.g. 3 boosts in accuracy make the value 2)

**Evasion** = The amount of evasion boosts the Pokemon has got (in percent - e.g. lowering evasion by two stages lowers this number to 0.6)

I took the move to be 100% accurate, and has no accuracy boosts.

So after doing the math, here's what I got:

#33.33% chance of hitting.

Source

Hope I helped!