197 is the right answer.
) B: t, F7 e k5 q; q/ T8 U- uos.tvboxnow.com
1 m( b3 G- M9 H* Vos.tvboxnow.comReason, 公仔箱論壇8 C i3 ^1 ^" L3 G8 ?% |$ P3 s
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1. $18 costs on Item = -$18tvb now,tvbnow,bttvb$ u, d7 y X) B# M& P. H
2. got $100 fake, (no income) , layout $79, = -$79
& B; e& O( v# G7 i% @3. pay back to $100 to that vendor whom exchange fake $100 here -$100 ; {; k1 f- z1 a# Y1 I3 _
/ ^) S8 q0 {2 w0 ^' NTherefore, totally, 18+79+100 = 197  |