So you want something like: 123 456,89$
Correct? Do you want a space before the dollar sign?
Yes, I would like a space before the dollar sign... 1456,56 $
I've made up an order form in English, with about 1000 products and have copied all the fields over to a French version.
Here's a sample that demonstrates probably the easiest way to do this: https://acrobat.com/#d=F3joZ1n0HIyYHm3V6MaTTg
Unfortunately, the built-in routines that this example depend on don't allow for a space for the thousands separator. If you need that, it's possible, but a bit more complicated.