Is there a way to add both superscript and subscript to some text?

[junming232694394pzq]

e.g. as below

[Steve Werner · Accepted solution]

It looks to me like you could set the $39.99 first, then the /SQ FT, and kern the latter back to sit under the superscript.

[melissapiccone]

The /SQ.FT is not subscript. Make the 99 superscript. Make the /SQFT smaller type and normal, not super script. Place your cursor at the end of .99 and set the kerning to -1000 or whatever. 

 

[jmlevy]

To go a little further, you can do this in one shot with GREP styles.