How does crit rating work?

Akster

Numbers such as 200 crit rating are a little too abstract for anyone to know what they mean without context, so how is crit rating actually calculated?

is it the number divided by 10, or a more complicated formula with diminishing retuerns, for example, or is it a rating that is dependant on the opponents stats as well?

Keaven

And how does evasion work?

Everyone seems to have a dodge rating of 0 yet a percentage increase of that somehow grants evasion??

dc2484

ive been trying to figure both those out as well. And are the percentages additive or multiplicative? Usually id think theyd be multiplicative as additive can sometimes lead to 100% or more of something. But without a base rating, im having trouble figuring out what value +10% dodge / crit (for example) has to a certain character or squad