197 is the right answer. 0 l6 \4 D- z7 V0 w
; Y9 d, Z8 S) N7 g2 j% ^Reason,
( n- G- G* Y( o x9 B公仔箱論壇
: g* Z* f# n: q- k' J; m" a2 d1. $18 costs on Item = -$18
* |8 b. \. o) v4 f公仔箱論壇2. got $100 fake, (no income) , layout $79, = -$79tvb now,tvbnow,bttvb- m* `5 @3 G! u: E2 s3 _4 O
3. pay back to $100 to that vendor whom exchange fake $100 here -$100 * x( p! q! \, i2 y7 }2 j
( P7 E# I: Y, q+ y; N! HTherefore, totally, 18+79+100 = 197  |