could you please tell me how to use calculator to get this result ( BA II plus)

ready to produce the part would be $7.76 million. Your discount rate for this contract is 7.7%. a. What does the NPV rule say you should do? b. If you take the contract, what will be the change in the value of your firm? a. What does the NPV rule say you should do? The NPV of the project is $ million. (Round to two decimal places.)