王老闆: LOSS (貨成本)$18+ (找錢給年輕人)$0+ (退還街坊)$100 = $118
(點解找錢給年輕人=$0? 皆因當時找出去的錢是街坊錢,不是王老闆錢,退還街坊才是王老闆錢)
GAIN (當第一次找錢給年輕人時剩下來的)$21+(假$100) $0 = $21
NET LOSS = $97作者: stephenyeong 時間: 2005-5-22 13:06:09
[quote:c6e6b0c526="FD"]我覺得會係咁樣:
我先要假設 "假$100"= $0
年輕人: GAIN (找錢)$79+ (貨成本)$18 = $97
LOSS (假$100) $0
街坊: 必定LEVEL
王老闆: LOSS (貨成本)$18+ (找錢給年輕人)$0+ (退還街坊)$100 = $118
(點解找錢給年輕人=$0? 皆因當時找出去的錢是街坊錢,不是王老闆錢,退還街坊才是王老闆錢)
GAIN (當第一次找錢給年輕人時剩下來的)$21+(假$100) $0 = $21
NET LOSS = $97[/quote]