【Star】評論
250,000-245,000/250,000=2%,122,500/(1-2%)=125,000,折扣=125,000-122,500=2,500
【小小兵】評論
(250,000-245,000)/250,000=2%(折扣率),122,500/(1-2%)=125,000,現金折扣=125,000-122,500=2,500另解:250,000X=245,000,則X=0.980.98Y=122,500,則Y= 125,000現金折扣=125,000-122,500=2,500