The per-unit cist of an item is its average total cost=(=total cost/quantity). Suppose that a new cell phone application costs $100,000 to develop and only $0.70 per unit to deliver to each cell phone customer. What will be the per-unit coat of the application if it sells 100 units? What will be the per-unit coat of the application if it sells 1,000 units? What will be the per-unit cost of the application if it sells 1 million units