Scenario Analysis

The most likely outcomes for a particular project are estimated as follows:

Unit price: $$50$

Variable cost: $$30$

Fixed cost: $$300,000$

Expected Sales: $30,000$ units per year

However, you recognized that some of these estimates are subject to error. Suppose that each of the above variables may turn out to be either $10\%$ higher or $10\%$ lower than the estimate. The project will last for $10$ years and requires an initial investment of $$1$ million. The firm's tax rate is $35\%$ and the required rate of return is $14\%.$ What is the project NPV in the "best$-$case" scenario that is assuming all variables take on the best possible value? What about the "worst$-$case" scenario?