Product "Options" Modifiers Only "$" "%" ?? Help!

So, I’m working on my product input.



How can I make it so that when an “OPTION” is selected it replaces the existing price, or set the price from the selected option?



The products I have require different options but the prices all vary.



When I make the price $0.00 it displays a [Contact us for a price] tag.



I need the actual price to be displayed after the Option is selected.



Any suggestions would be very helpful.



Thanks!

It should calculate it on a page resfresh or on the next page. I.e. if you select an option and then click add to cart, it will compute it correctly. Or, if you clicked refresh it would also recalculate. This is an area where using AJAX/JS would be beneficial to the customer.