Applica sconto al raggiungimento di una certa cifra

add_action('woocommerce_cart_calculate_fees', 'dmm_apply_discount');

function dmm_apply_discount() {
    $desired_discount_percentage = 5; // Modifica questo valore con la percentuale desiderata

    if (WC()->cart->subtotal >= 200) {
        $discount = WC()->cart->subtotal * ($desired_discount_percentage / 100);
        WC()->cart->add_fee("Sconto {$desired_discount_percentage}%", -$discount);
    }
}