Finance-Okay, we now have a great new product opportunity ahead of us

Okay, we now have a great new product opportunity ahead of us. We’ll need to raise $500,000 in capital to launch the product though. We want to make sure that the product will result in a favorable return to the company’s shareholders. We predict that with the $500,000 investment, it should return 11%. What cost of capital calculation would you use to compare to the 11% in this scenario: (1) the company’s historical cost of capital, using the historical weights of the capital components (i. e. , debt, preferred stock and common stock), or (2) the marginal cost of capital (i. e. , the weights of the capital components we expect to require to fund the $500,000)Does it matter which cost of capital we use? Why or why not?