Smartzboy

73$ bcus shoe = 15$
, Q( }: z( t5 b1 S公仔箱論壇             the boss paid to customer change = 29$  y- N2 U- A- Z, y5 X6 w% I; u
            the boss paid back to other ppl = 29$
7 r) U& ~8 K3 T1 U3 W' z# I公仔箱論壇tvb now,tvbnow,bttvb8 V& b  ~1 y8 c$ g& t- g
so, 15$ + 29$ + 29$ = 73$