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王老板損失了 176 元。
qwertt12,, t6 H7 x" X( _# H" v+ S
Your calculation should be wrong. As Mr. Wong need to refund $100 to his neighbour. The calculation should be :
: I" h1 K9 d5 i0 s: qtvb now,tvbnow,bttvb$100 (refund to neighbour from Mr Wong's own money) + $79 (paid to the young man) - $3 (earning from the sale) = $176
) L% z- Z; B  |This should be the fact.
本帖最後由 hase000 於 2015-11-24 05:06 PM 編輯
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Sorry, I think wrong. Actual loss should be $118 (refund to neighbour $100 + cost of gift $18) - $21 (sales income) = $97
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