0-18(buy)=-18
: Q0 J( a# a- T% @, A公仔箱論壇# T/ J- l4 F* E0 e$ W- l' u
100(paid)-79(change)=21(sold for)
0 {. F. b! w1 M/ ztvb now,tvbnow,bttvb
# R# q- M- t% v. o9 m- E z% g# y5.39.217.76-18+21=3(profit)
/ D `, g: Q# r
) T/ b* C7 M3 Q* Z4 _3 o) y公仔箱論壇-100(fake)
/ _, I; G6 U! z2 E R. s( q/ Ftvb now,tvbnow,bttvb
: z! \, e4 y1 T/ d+ e1 @tvb now,tvbnow,bttvb-100+3= -97 |