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100块呀~~~
197... wat is the answer?
( b: v& V7 f7 G6 c  Q5.39.217.77:88981 d7 h2 L3 x$ K+ X$ J0 z5 ?; \  v
boss's loss:tvb now,tvbnow,bttvb: U' C' S, d; t6 s8 s
100 return to neighbour
& p. Q9 u3 d' k* D5.39.217.77:889879 return to buyer* E1 {4 F. a" E
18 cost of product公仔箱論壇# J, w6 X$ [3 _* z
= 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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