Cent sign
On Windows, hold Alt and type 0162 or 155 on the number pad, then let go of Alt.
Copy it
About the cent sign
On American manual typewriters, ¢ was the shifted character on the 6 key. Computer keyboards gave that spot to the circumflex ^ instead, and the cent sign never won a key back, which is why it is awkward to type today. It stands for one hundredth of a dollar and of other decimal currencies.