0-18(buy)=-18公仔箱論壇1 Z7 j {! E' A! o% b j' A+ p
" X4 q4 z4 w2 X Y. qtvb now,tvbnow,bttvb100(paid)-79(change)=21(sold for)
# x, y+ D, u3 \- g8 d$ u! {
; j4 ?+ b$ p, Y. e$ v, c8 V$ ztvb now,tvbnow,bttvb-18+21=3(profit)2 L1 c( G- x$ w# {" {; O
5 Z! k6 q3 L9 _( [" g
-100(fake)
, k. H* d) {% q/ s; u! `& ntvb now,tvbnow,bttvb( n1 I" t g6 T, t1 L8 `& |* n
-100+3= -97 |