197 is the right answer. ) o$ f* R: C" j( y) g
* u: P& j4 e# @% n$ X公仔箱論壇Reason,
$ V: V9 K2 a# Iwww.tvboxnow.com( T# R4 e: w2 L! m( y5 C( Q. P) }: S
1. $18 costs on Item = -$18* k5 ]0 e3 ]1 k; j
2. got $100 fake, (no income) , layout $79, = -$79
/ ^% Q+ |% s8 Z; c, z, Kwww.tvboxnow.com3. pay back to $100 to that vendor whom exchange fake $100 here -$100 公仔箱論壇$ h! G- f) H& Z1 B9 u9 L% D9 ~
7 D, X9 R8 l; m# B( S+ H$ B2 _: n
Therefore, totally, 18+79+100 = 197  |