Function.php Dynamic Conversion Value Code

Hi,

I have to set dynamic conversion value for google ads,I want to do it without a plugin, I just need the code to get order total. For now I have set the same value for every order(conversion),I put this code in my function.php and it worksite is tracking conversions :

add_action( 'woocommerce_thankyou', 'bbloomer_conversion_tracking_thank_you_page' );
 
function bbloomer_conversion_tracking_thank_you_page() {
   ?>
<!-- Event snippet for Kupnja dizajniraj majicu conversion page -->
   <script type="text/javascript">
   gtag('event', 'conversion', {
    'send_to': 'AW-975759864/-8vzCNae5aHGOIHfrdED',
    'value': 10.0,
    'currency': 'HRK',
    'transaction_id': ''
});
   </script>
   <?php
}

Some help would be much appreciated, should I use code like this,I found it on a woo-commerce site `

function my_custom_tracking( $order_id ) {

// Lets grab the order
$order = wc_get_order( $order_id );
}`

and this goes in value <?php echo $order->get_total();?>

I could not get it to work.

Kind regards

Boris

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