I'm thinking of teaching a Pokemon I like Focus Energy, while supplementing that increase in Critical Hit Ratio with an item like Razor Fang. I haven't tried this yet, by what percentage do you think (or you know) I would have the probability of landing Critical Hits?
All the info you need
The base stage is always 1. Then you have focus energy, which is a +1 to a normal stage 1 attack (stage 2). With an increased CH move, it's now 2+1, which is 25% (stage 3).