I always remembered the rule of thumb being every 20 skill is 1%. So 50 was 2.5% and 200 was 10%.
These were more rough numbers, The more exact number is about every 18.7~ skill is 1%. So 200/18 = 10.6% which may round up to 11%.
https://forums.station.sony.com/eq/i...a-augs.199159/
Thats the last time I calculated this stuff out (see post 19, I am Darchon).