Quick Computing currently sells $10$ million computer chips each year at a price of $$20$ per chip. It is about to introduce a new chip, and it forecasts annual sales of $12$ million of these improved chips at a price of $$25$ each. However, demand for the old chip will decrease, and sales of the old chip are expected to fall to $3$ million per year. The old chips cost $$6$ each to manufacture, and the new ones will cost $$8$ each. What is the proper cash flow to use to evaluate the present value of the introduction of the new chip?

Note: Enter your answer in millions.