Extended ASCII Character Chart

These are a se of 128 decimal numbers that range from 128-255. These characters represent mathematical, foreign, and graphic text characters.

The most common is using the ALT + the character's decimal (Dec) #. So if I want to type "%" I'll press ALT + 37. You can also apply the decimal to html by adding &# to the front and the ; to the end. For instance + is +.