In WooCommerce, the shipping cost can be calculated using various methods. One of the methods is to calculate the shipping cost as a percentage of the cart total. In this article, we will go over the steps to calculate the shipping cost as 2% of the cart total in WooCommerce.

The first step is to create a custom shipping method that will be used to calculate the shipping cost as a percentage of the cart total. This can be done by creating a new class that extends the WC_Shipping_Method class and overrides the calculate_shipping method.

Here is an example of a custom shipping method class that calculates the shipping cost as 2% of the cart total:

Copy codeclass WC_Shipping_Method_Percentage extends WC_Shipping_Method {
 
    public function __construct() {
        $this->id = 'percentage_shipping';
        $this->method_title = __( 'Percentage Shipping', 'woocommerce' );
        $this->method_description = __( 'Custom shipping method for calculating shipping cost as 2% of cart total', 'woocommerce' );
 
        $this->enabled = "yes";
        $this->title = "Percentage Shipping";
 
        $this->init();
    }
 
    public function calculate_shipping( $package ) {
        $cart_total = WC()->cart->subtotal;
        $shipping_cost = (2/100) * $cart_total;
 
        $rate = array(
            'id' => $this->id,
            'label' => $this->title,
            'cost' => $shipping_cost
        );
 
        $this->add_rate( $rate );
    }
}

In this example, the class “WC_Shipping_Method_Percentage” is created, which extends the WC_Shipping_Method class. The calculate_shipping method is overridden, and the shipping cost is calculated as 2% of the cart total.

The next step is to register the custom shipping method with WooCommerce. This can be done by adding the following code to the functions.php file of your theme or plugin:

Copy codefunction register_percentage_shipping_method( $methods ) {
    $methods['percentage_shipping'] = 'WC_Shipping_Method_Percentage';
    return $methods;
}
add_filter( 'woocommerce_shipping_methods', 'register_percentage_shipping_method' );

In this example, the register_percentage_shipping_method function is added to the woocommerce_shipping_methods filter, which registers the custom shipping method with WooCommerce.

Additionally, you can also set a minimum and maximum cart total range, where this shipping method will be applied. You can set this by adding the following code snippet in the constructor of the custom shipping method class

Copy code$this->min_amount = 0; //minimum cart total where this method will be applied
$this->max_amount = 1000; //maximum cart total where this method will be applied

Now, the shipping cost will be calculated as 2% of the cart total when the cart total is between the minimum and maximum range.

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