You are considering an investment opportunity that requires an initial investment of $50 million today. It will generate only one future payment of $78 million at the end of three years. The cost of capital is 7%. What is the NPV?

[Give your answer in millions of dollars (not in dollars), to one and only one decimal place, and with no dollar sign. For example, 6.2, 18.9 or 47.6. The software will mark it wrong otherwise, so please format your answer properly.]