197 is the right answer.
4 e7 i4 V0 H9 \3 Bos.tvboxnow.com* [4 `9 m4 J3 Y& q9 f% ~; J# |# E) o
Reason,
9 b, O) o/ S7 H8 E8 ttvb now,tvbnow,bttvb
/ G- L' l6 |2 P4 v Q0 Z1. $18 costs on Item = -$18公仔箱論壇2 q! N6 W; y4 q( L( c, W! a
2. got $100 fake, (no income) , layout $79, = -$79+ {; U3 |8 p( I K! M' T
3. pay back to $100 to that vendor whom exchange fake $100 here -$100 公仔箱論壇; u7 Q- l( i( w2 T
tvb now,tvbnow,bttvb8 h# ^) \8 @! Z* x
Therefore, totally, 18+79+100 = 197  |