WOOCS - WooCommerce Currency Switcher

The plugin URL: https://wordpress.org/plugins/wc-fields-factory/

• In file functions.php add next code:

  add_filter('wcff_negotiate_price_after_calculation', function($price) {
      if (class_exists('WOOCS')) {
          global $WOOCS;
          if ($WOOCS->is_multiple_allowed) {
              $currencies = $WOOCS->get_currencies();
              $conversion_rate = $currencies[$WOOCS->current_currency]['rate'];
              $price = $price / $conversion_rate;
          }
      }
  
      return $price;
  });