WPC Product Bundles for WooCommerce By WPClever

Plugin link: https://wordpress.org/plugins/woo-product-bundle/

into file functions.php of the current WordPress theme add next code

add_filter('woosb_item_price_before_set', function ($_price, $cart_item) {
    if (class_exists('WOOCS')) {
        global $WOOCS;
        if ($WOOCS->is_multiple_allowed AND $_price) {
            $currrent = $WOOCS->current_currency;
            if ($currrent != $WOOCS->default_currency) {
                $currencies = $WOOCS->get_currencies();
                $rate = $currencies[$currrent]['rate'];
                $_price = $_price / $rate;
            }
        }
    }

    return $_price;
}, 10, 2);

Shortcodes, functions, actions and filters reference for FOX WooCommerce Currency Switcher