Definitely cents, with the emphasis on the *s*.

If you want to use it as an adjective, just always make it singular to render it as a modifier.

And if you want it is a noun, you don't have to change the form of the word/s you have intended to state.

You can click the link here for more information: [CENTS, not "cent"][1]


  [1]: https://web.archive.org/web/20180126034830/http://www.topix.com/forum/city/welch-wv/TSFBIHPPHBRQ8OLE3