GMAT assumes that the testers know the definition of profit margin as COMMON sense. After all, GMAT is for those who want to work in the financial industry. If a tester does not have common sense or basic knowledge of financial transaction, he or she is unlikely to become a successful MBA student. Profit margin = revenue - cost. -- by 会员 sdcar2010 (2011/5/18 19:33:55)
no offence profit margin 是利润率吧。。。不是收入减去成本。。 |