How to add order id and total parameters to checkout script?

[Annuksun]

Hi Guys,

Very quick question. 

I need to add a script to checkout and I need to add the order id and order total parameters to it.

Can someone advise on the name of those parameters? What should I put? 

<script>
mt('track', 'Order Completed', {
orderId: '', /* Set conversion Id here */
total: '', /* Set conversion amount here */
});
</script>

Thanks a lot.

[Annuksun]

Please help 😞