This plugin will add a custom fee for Cash On Delivery payment method in WooCommerce. It is a very simple plugin with only two options. Fee amount and Fee title (what the user will see as explanation for the extra charge).

A WooCommerce shipping method that calculates the shipping cost as a percentage of the cart subtotal.

Discount for the first order for Woocommerce.

Woocommerce add-to-cart addon adds duration or increments to products. Opens in Settings > Unitizr

Add fees to your store Cash on delivery payments

Set fees and discounts for WooCommerce payment gateways.

Shipping method extension for the WooCommerce e-commerce plugin. This adds a "delivery" shipping method that can have a fixed value price or a percentage of the cart total.

Adds a fixed fee or discount to the WooCommerce cart total based on subtotal ranges, with a customizable label shown at checkout and in the cart.