Στο google_base.php υπάρχει ο παρακάτω κώδικας
$currencies = array('USD','EUR','GBP');
if (in_array($this->session->data['currency'], $currencies)) {
$currency_code = $this->session->data['currency'];
$currency_value = $this->currency->getValue($this->session->data['currency']);
} else {
$currency_code = 'USD';
$currency_value = $this->currency->getValue('USD');
}
if ((float)$product['special']) {
$output .= ' <g:price>' . $this->currency->format($this->tax->calculate($product['special'], $product['tax_class_id']), $currency_code, $currency_value, false) . '</g:price>';
} else {
$output .= ' <g:price>' . $this->currency->format($this->tax->calculate($product['price'], $product['tax_class_id']), $currency_code, $currency_value, false) . '</g:price>';
}
...<g:identifier_exists>false</g:identifier_exists>
<g:price>9.2</g:price>
<g:google_product_category>536</g:google_product_category>...