SmartphonesCalculus Level 3
A shop sells \(500\) smartphones a week for \($450\) each. A market survey shows that each decrease of \($5\) on the price will result in the sale of an additional \(10\) smartphones per week. What price of the smartphone would result in maximum revenue?
Details and assumptions
The revenue is defined as the product of the number of items sold and the price of each item.