virus9999

小米步童鞋店無奈之下，還了街坊50元。 = -50
) J* p9 H' j% \; r+ p- C' ~5.39.217.76找給年輕人29元。=-29
6 N1 D' s; e9 s" Y4 g公仔箱論壇這雙鞋子成本是15元，標價是21元。= -21 i think? or -155.39.217.763 v4 Z6 z% a0 k; B/ W
so total lost = -50-29-15 (or -21)