引用:
原帖由 cetin 於 2011-1-18 09:53 發表 ![](http://www.saunaguide88.com/forum/images/common/back.gif)
付出成本(Cost) / 得到性能 (Performance) 比率
簡單地講,數值越高就越抵玩
Based on your formula, should it the opposite. For instance, if the c=1, p=5, then the result will be 0.25. In contrast, if the c=5, p=1, the result will be 5. Obviously, the former one is better than the latter one. Please correct me if I'm wrong.