The difference is

来源: WQPY 于 2013-10-09 08:51:25 [] [博客] [旧帖] [给我悄悄话] 阅读数 : 0 (353 bytes)

The difference is $100, if you compare the outcome of a normal sale (without the fake Benjamin).
Now you ask "一共亏了多少", then the answer varies a little bit depending on your definition of 亏. Like you could have gross profit from that sale, if this transaction didn't happen. Or you could get that bad guy, or use that fake bill...

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