progress_bar - add a word

Hello there,

I'm using the shortcode:
[progress_bar id="1613" show_title="no" show_totals="yes" style="wdf-dark"]

Current Display:
?1,750,100 / ?2,000,000

I would like to add a word in between the two numbers like:

?1,750,100 ??????????? ?2,000,000

Basically I would like to remove the / and replace it with "???????????" which means "raised of.

Is that possible?

Thanks again!