Please answer this question, also let me know if there is any way to do this question on a financial calculator ?

AMS Company has unexpectedly generated a one-time extra $6 million in cash flow this year. After announcing the extra cash flow, AMS stock price was $45 per share (it has 1 million shares outstanding). The managers are considering spending the $6 million on a project that would generate a single cash flow of $6.5 million in one year, which they would then use to repurchase shares. Assume the cost of capital for the project is 15%. a. If they decide on the investment, what will happen to the price per share? b. If they instead use the $6 million to repurchase stock immediately, what will be the price per share? c. Which decision is better and why