197 is the right answer.
$ h3 U; Y% Y, F/ q# H' c
5 h6 g- H' Z3 `1 Jtvb now,tvbnow,bttvbReason,
8 t8 w: c* I& _) W' l/ |公仔箱論壇5 S; Y4 }1 v$ I" P4 E
1. $18 costs on Item = -$18tvb now,tvbnow,bttvb5 e) A6 x* q/ a2 x! x
2. got $100 fake, (no income) , layout $79, = -$79
2 X8 x2 f, Z4 |% p5 s2 b+ J3 U: R3. pay back to $100 to that vendor whom exchange fake $100 here -$100
7 D, e: B' z8 S5.39.217.76tvb now,tvbnow,bttvb6 Z/ E. ^( u, h! E6 j+ r
Therefore, totally, 18+79+100 = 197  |