Help with number field

Hello GF support, I would like a little help with the number field.
I have a number field and i insert the product "insert Merge Tag" so i get
{Product #4:80}
This is a drop down product field with populated name, value and price.
How do i modify the merge tag to echo the price?

Also I want to inform you that my previous support issue has been resolved it was the character "|" in my post titles which made the form go wild.

Yes that works great, thank you!
Could you tell me if you know of an easy way to add the $ sign at the end of the number?