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100块呀~~~
197... wat is the answer?公仔箱論壇' k1 \( F2 t5 T- o
: _# {' N+ f& b$ k
boss's loss:
7 |! v4 C& z  \' b5 ^100 return to neighbour
! c. u/ u/ ]# M( ^公仔箱論壇79 return to buyer公仔箱論壇; x! h9 s2 l9 J+ V+ ?0 v
18 cost of product' ]% p1 \* B. @7 L
= 197
197
y 97 R??????
197
97...
97蚊
100+79+18
197????
100(cash)+18(cost)
100(cash)+97(change)+18(cost)+3(profit)
197 or 200
197-200
200-197
Thank you
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