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100块呀~~~
197... wat is the answer?tvb now,tvbnow,bttvb; [( R( n# b8 s" d0 |+ S
, Y/ i4 R: y& O. }8 _( e
boss's loss:
1 l# J7 w& a# N; @5 Y3 C- a3 U100 return to neighbour" k6 k9 e0 e! R
79 return to buyer
* n1 t0 N" J" f0 N& a( y6 Q8 tos.tvboxnow.com18 cost of producttvb now,tvbnow,bttvb' G  t9 d- j( e7 }! [
= 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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