WOOCS - WooCommerce Currency Switcher

DHL Express Commerce plugin

Plugin link: https://dhlcommerce.zendesk.com/hc/en-gb/articles/360035934192-Rates-at-checkout-for-WooCommerce

To file \wp-content\plugins\dhl-woocommerce-shipping\dhl_eccommerce\includes\class-wf-dhl-woocommerce-shipping.php add next code:

if (class_exists('WOOCS')) {
    global $WOOCS;
    if ($WOOCS->is_multiple_allowed) {
        $total_value = $WOOCS->woocs_exchange_value(floatval($total_value));
    }
}