197 is the right answer. + f' w* p$ L* o2 Q
2 l* F; }& q$ M: r t0 H( IReason, TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。3 T, G! o: `5 P+ A: z8 T
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1. $18 costs on Item = -$18
n5 m+ ~* H+ Z( G" s4 j) O2 K2. got $100 fake, (no income) , layout $79, = -$79www1.tvboxnow.com# w# n) K1 {% O6 U5 m. K
3. pay back to $100 to that vendor whom exchange fake $100 here -$100 ' P0 j6 b) S% K# }* G2 N" P
TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。* T' {, `. a3 J8 {5 u- y, m8 M
Therefore, totally, 18+79+100 = 197  |