YITH WooCommerce Name Your Price is used when you want to offer users the chance to choose the amount they wish to pay for a selected product, allowing a minimum and a maximum amount.
Using the plugin in combination with the YITH WooCommerce Product Bundles, your customers can choose the amount they wish to pay for the product bundles available in your store.
After installing and activating both plugins, you must create your bundles by leaving the option Per item pricing disabled.
After inserting the values in the related fields, the plugin will show the recommended, minimum and maximum price on the product page.
For further details about YITH WooCommerce Name Your Price settings, please refer to the official documentation.