The free version of YITH WooCommerce Best Sellers allows you to display the 100 best selling products in your shop. In order to do that, once you have activated the plugin, it automatically creates the page Best Sellers that will be used to show your best selling items.
As you can see from the image above, in this page 100 best sellers of your shop are shown, sorted from the one which has collected most sales to the one with least sales.
Moreover, the plugin gives you the possibility to assign a badge to all bests seller products. To do that, you just have access settings panel via YIT Plugins > Best Sellers and enable the option Show “Best Seller” badge.
Then the widget YITH WooCommerce Best Sellers shows the 3 best sellers in your shop.