0-18(buy)=-18
; y. K2 o$ J% O2 d公仔箱論壇+ T e! ?+ C# I" J
100(paid)-79(change)=21(sold for) h$ B5 y# j. I: E; o
( H: g$ E/ `7 P+ y5 b4 m$ x公仔箱論壇-18+21=3(profit) M7 p, V% M/ u& U: q" t2 y! k% z
公仔箱論壇/ g/ U7 c$ _8 o8 |
-100(fake)tvb now,tvbnow,bttvb2 {5 O5 y0 {& W# S2 t3 o( g/ u7 R
tvb now,tvbnow,bttvb! I r5 Y! W" p/ d) K
-100+3= -97 |