197 is the right answer.
& s/ F {( y* `公仔箱論壇
' }' _9 [; d; |; @0 u公仔箱論壇Reason,
- x3 @. Z6 s* P* V; z公仔箱論壇tvb now,tvbnow,bttvb! y, v9 X% ]/ F! `3 \' T
1. $18 costs on Item = -$18
1 w1 Y" b6 W3 F5 u3 T. f" X2. got $100 fake, (no income) , layout $79, = -$79tvb now,tvbnow,bttvb2 I' n6 _+ L5 T' n/ r
3. pay back to $100 to that vendor whom exchange fake $100 here -$100
+ Z4 i) R) p( U7 X. k9 Owww2.tvboxnow.com
7 g- O0 K: _+ v0 J! d公仔箱論壇Therefore, totally, 18+79+100 = 197  |