[Plugin-In: WooCommerce/Affiliates Pro] Commission Per Product?

I’m building a website for my client. My client would like me to create an affiliate program where he users can go to the website and sign-up to be an affiliate, then provide others with a link to purchase one of his products, and if the person buys the product, the person who joined the affiliate program gains $5 in their account. I’ve purchased this plugin for the affiliate program he desires but I can’t seem to get this to work. Can you please explain how to do this?

plugin is Affiliates pro and shop is woocommerce