ashley91

1 dollar???

sunnyzhou

siobi

total cost = 8 + 10
, {' R: L, G( `& R5.39.217.76total sales = 9 + 11tvb now,tvbnow,bttvb* g- m: M. I) q; `, [$ r, C
tvb now,tvbnow,bttvb' g# w9 X9 G( a  s& ^5 F, \! Z3 p- m
total profit = 20 - 18 = 2

大笨象

８（低價）元買回，９元買出，賺１元（＋１）
, M, W1 T8 V9 R7 h/ w: Stvb now,tvbnow,bttvb８（低價）元買回，１０元買入，蝕本２元（－２）5.39.217.76( j0 S- c/ @7 p- [
８（低價）元買回，１１元買出，賺３元（＋３）tvb now,tvbnow,bttvb, U; I" S2 X9 k
算式：１－２＋３＝２* k' g# s8 W' Q; j/ ~5 l$ \% j
所以係賺２元。

t33hk

２

est

Elcarim

2 dollar lor

paulwalker

2

Elcarim

tank kill