197 is the right answer.
' s$ G1 }) ?5 a$ D7 U% {5.39.217.77:8898
; [. @0 ^. y8 j9 {' o公仔箱論壇Reason, tvb now,tvbnow,bttvb1 F9 F+ ~0 G7 E0 y
4 a x/ b4 |4 C1 z- d" F) [! c公仔箱論壇1. $18 costs on Item = -$18; C% ~. e0 F' e
2. got $100 fake, (no income) , layout $79, = -$79tvb now,tvbnow,bttvb) w6 a& ]3 @0 x/ z* n
3. pay back to $100 to that vendor whom exchange fake $100 here -$100 ; q f F q: K/ U8 W
" S# r4 u/ m/ c3 {! Y3 _( P# r7 j
Therefore, totally, 18+79+100 = 197  |