197 is the right answer.
$ V# n2 i2 y# W公仔箱論壇公仔箱論壇/ Q9 I6 g, c- R6 c* C2 O
Reason, www1.tvboxnow.com ]3 F5 c, h3 ~! r, m' |( F
公仔箱論壇* J5 v5 G& h- P- L8 j! s7 y
1. $18 costs on Item = -$18
+ k/ v: r$ u% Z' @www1.tvboxnow.com2. got $100 fake, (no income) , layout $79, = -$79
, [; Y, T+ K4 g+ P- a/ o3. pay back to $100 to that vendor whom exchange fake $100 here -$100 4 |/ E B0 H7 C8 L M% e0 M
; n$ k* h- P0 N6 o$ p: {Therefore, totally, 18+79+100 = 197  |