You are the financial manager of the utility company American Power Inc. and you are considering the construction of a nuclear power plant. The proposed facility costs $$2,400$ million to build, then it will produce cash flows of $$300$ million at the end of every year for $12$ years, and eventually it is decommissioned at a cost of $$850$ million at the end of year $12.$ What is the NPV of the nuclear power plant? Assume an interest rate of $15\%$ per year. Answer in millions of dollars with $2$ decimals $($for example, if your answer is $1,000,000$ enter $1\mathrm{.}00).$ Also, if you answer is negative put a negative sign in your answer.