A proposed nuclear power plant will cost $2.3 billion to build and then will produce cash flows of $310 million a year for 15 years. After that period (in year 15), it must be decommissioned at a cost of $910 million. What is project NPV if the discount rates are 4% and 17%? (Negative amounts should be indicated by a minus sign. Do not round intermediate calculations. Enter your answers in billions rounded to 3 decimal places.) Discount Rate NPV 4% $ billion 17% $ billion