The "cent" sign (˘) can be entered by holding down the Alt key,
and entering (FROM the numeric keypad, that's important) 0162
(the leading 0 is important also) and then letting the Alt key go.
When the Alt key is released you will see the ˘ character.
Hint: you can easily open the "Character Map" in your System Tools, in Accessories; OR just Win+R charmap.
Character Map will show you the keystrokes for many other characters, as well. You can also use it to copy/paste them.
Suggest you get
ASCIIcat for all the various keystrokes (and
MUCH more).