73$ bcus shoe = 15$9 N" E6 }1 z/ y1 g
the boss paid to customer change = 29$公仔箱論壇9 {2 C- o* ^1 d
the boss paid back to other ppl = 29$TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。. d# }* \: a% u) `, O8 I, n( e- G
" N9 t9 L7 P' p7 O
so, 15$ + 29$ + 29$ = 73$