A proposed nuclear power plant will cost $2.5 billion to build and then will produce cash flows of $330 million a year for 15 years. After that period (in year 15), it must be decommissioned at a cost of $930 million

What is project NPV if the discount rates are 5% and 18% (Negative amounts should be indicated by a minus sign. Do not round intermediate calculations. Enter your answers in billions rounded to 3 decimal places.)