NPV is a planned profit, if it is greater than 0, is the additional revenue, equal to 0 is just to achieve the desired benefits, less than 0 is unable to meet the expected return, but cannot prove whether losses
NPV is the amount of profit a plan, if greater than 0, there is additional revenue equal to 0 is just to achieve expected benefits, is not less than 0 to achieve expected benefits, but can not prove whether or loss
NPV is a plan of profit, if more than 0, there is an additional income, equal to 0 is just can achieve the expected benefits, less than 0 is not expected to achieve earnings, but can not prove whether the loss