If I read your mind correctly... "Credit" in slot machines has options to be displayed either in “Dollar" or "Number", though newer machines show both (up and down) together these days.The slot machines got money and credit. What's the difference?
* Most of us just choose "Dollar" to save the mental conversion.
To answer your question: No difference.
For example: $100... if you want it to be presented in "Number" instead of "Dollar", you will see 1000 credits in 10 cent denom; or 2000 credits in 5 cent denom; or 10000 credits in 1 cent denom.
Which games u gonna be playing ?