Formulas

Drop

Cont doesn't affect drops anymore. Rep affects it, but the effect scales logarithmically. It also doesn't affect the frequency of drops directly like Luck, so it's hard to put an exact number on it (although Luck increases drops like rep does, to a lesser extent, which means it's actually more than it says it does).

http://www.wolframalpha.com/input/?i=log(10,x%2B20)+with+x+from+0+to+1000