Please show step by step, including any formulas and substitutions of those formulas. Thank you!

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Your division is considering two facility investment projects, each of which requires an upfront expenditure of $15 million. You estimated that the investments will produce the following net cash flows: Year 1 2 3 Project A Project B What are the project's net present values, assuming the cost of capital is 10%, 5%, 15%. What does this analysis tell you about the projects?