Tailoring succes chance question

[korilla]

I'm working on getting. 208 skill for the 6th shawl. I understand that trivial means 95% success rate. what skill would be equivalent to 90%, 75%, and 50%? Is there some kind of math behind this?

Thanks

[Naethyn]

http://wiki.project1999.com/TradeskillTable

[elwing]

http://eqtraders.com/calculators/mai...r=130000000000

keep in mind that the RNG is a bitch and don't be surprised if you fail three time in a row for a combine with 60% success...

[korilla]

if trivial is 208, which table do i follow - 205 or 210? or do i do an average in between?