The value should be netted off against the original purchase price.应扣除原来买价后计算其净值。He sold the car for more than he'd paid and pocketed the difference.他以高于买价的价格将车卖掉，赚了差价。I sold it for more than I paid for it, so I'm $15 to the good.我以高于买价的价格卖出，因此我净赚十五元。