A proposed nuclear power plant will cost $1.6 billion to build and then will produce cash flows of $240 million a year for 15 years. After that period (in year 15). It must be decommissioned at a cost of $840 million. (Negative amounts should be indicated by a minus sign. Do not round intermediate calculations. Enter your answers in billions rounded to 3 decimal places.) o. What is the NPV of the project if the discount rate is 4%? Net presente Don b. What is the NPV of the project if the discount rate is 18%? Net present bition