197 is the right answer.
7 W6 _+ j$ j {) \/ F' {5.39.217.760 n: P, D: U* L1 |4 D% {7 { B
Reason,
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# `9 y, a) V- W4 d, S& j公仔箱論壇1. $18 costs on Item = -$18
$ U- u( }0 C0 N5 M公仔箱論壇2. got $100 fake, (no income) , layout $79, = -$79
& J% R, Y: l$ g$ g) L. U5.39.217.763. pay back to $100 to that vendor whom exchange fake $100 here -$100 ) ]8 ^ E4 ]4 k, {
$ ]6 |8 ^0 d5 l$ M* h8 p. lTherefore, totally, 18+79+100 = 197  |