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100块呀~~~
197... wat is the answer?
: T; n1 ?  u3 }0 _. j
+ |* k: L- j1 j- M7 [5.39.217.77boss's loss:
, f4 W: x9 c) T100 return to neighbour公仔箱論壇2 w+ |  j+ W& c
79 return to buyer" h; F3 f3 e1 ]2 M, n
18 cost of product
# [, N( f0 r0 q5.39.217.77= 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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