depends on how you calculate shoe cost, it can be opportunity cost (21) or the inventory cost (15).
Personally, I feel 21 is more fair.
50+29+15, or 50+29+21
所有跟帖:
•
糟糕,阿贝也中招了
-抛玉引砖-
♂
(0 bytes)
()
12/28/2007 postreply
17:44:11
•
证明我不适合玩基金。 :)还是炒房子吧。
-BayFamily-
♂
(0 bytes)
()
12/28/2007 postreply
21:14:37