You can set General Commission Law that applies to all products, or on a product by product basis.
Navigate to Woocommerce > WCMp > Payment tab , you will have an option to choose between Vendor Fees or Vendor Commission. Vendor Fees will affect the rest of options as what is going to be paid Vendors on each sales while Admin Fees will affect the rest of options to what is going to be paid to vendors.
Product By Product Basis
You can set different commission status for each product that over rides the general commission law, by navigating to the specific product, then from Product Data you can specify specific commission law for that specific product.