>That's a lot lower than I thought. Did some people have
>their rates lowered? Or is 48.8% the default?

Without looking directly at the code, I'm pretty sure 50% is the default and there is a formula in the code to allow it to go over 100% or down to 20% I think.

>Or is there some formula that calculates a default for each
>character?

The formula is the same for every character (as is the default), but there are things specific to a character that will play into the formula.