It does this by discounting future cash flows back to the present (Y-); and then comparing the total present value of the net future cash receipts with the present value of the cash payments related to the capital invested in the project.
Ni nini hii kwa discounting mtiririko wa fedha baadaye nyuma sasa (Y-); na kisha kulinganisha jumla thamani ya sasa ya wavu risiti baadaye fedha na thamani ya sasa ya malipo ya fedha kuhusiana na mji mkuu wa wawekezaji katika mradi huo.