The most likely outcomes for a particular project are estimated as follows: Unit price: $$50$ Variable cost: $$30$ Fixed cost $$430,000$ Expected sales: $42,000$ units per year However, you recognize that some of these estimates are subject to error. Suppose each variable turns out to be either $10\%$ higher or $10\%$ lower than the initial estimate. The project will last for $10$ years and requires an initial investment of $$1\mathrm{.}9$ million, which will be depreciated straight$-$line over the project life to a final value of zero. The firm's tax rate is $21\%,$ and the required rate of return is $10\%.$ A$)$ What is project's NPV in the best$-$case scenario, that is$,$ assuming all variables take on the best possible value? B$)$ What is project's NPV in the worst$-$case scenario?