197 is the right answer.
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+ w6 T9 ^8 W9 F0 n: h( qtvb now,tvbnow,bttvbReason, 公仔箱論壇4 s6 T4 E( Z9 ?5 ~, B* d7 m
. C( k& E9 y1 I1. $18 costs on Item = -$185.39.217.76- U" I9 ~3 E$ |, x+ X& e
2. got $100 fake, (no income) , layout $79, = -$79
3 w- O) B8 }. ~" Z5 J& l公仔箱論壇3. pay back to $100 to that vendor whom exchange fake $100 here -$100
7 Z8 B' f. z9 T. d% p) @6 V7 F+ I R公仔箱論壇
& ]7 u3 E& q+ ptvb now,tvbnow,bttvbTherefore, totally, 18+79+100 = 197  |