197 is the right answer.
5 B1 f" Y5 ?' d3 d9 b# J5 F7 otvb now,tvbnow,bttvb) q9 D* `% M7 k' B
Reason,
- q# Z$ \- k& r, ?1 ? O4 a公仔箱論壇
4 \: t3 M, e! F" e- o# z% P1. $18 costs on Item = -$18tvb now,tvbnow,bttvb$ I' ^& q5 {4 R" H0 A# f# z
2. got $100 fake, (no income) , layout $79, = -$79tvb now,tvbnow,bttvb! P+ \; u$ g# H0 h
3. pay back to $100 to that vendor whom exchange fake $100 here -$100 ! u7 Z1 Y H- R. G$ b0 j2 J
- P: \( T0 v5 x: u, D/ k h公仔箱論壇Therefore, totally, 18+79+100 = 197  |