Hey Brian,
You can include this wherever you would like within the event templates following our Themer’s Guide.
For example, if you wanted to add the cost to the event displaying within the list view, you would copy the src > views > list > single-event.php into your theme within a “tribe-events” folder that you add at tribe-events > list > single-event.php.
From there, you can open the file and add the snippet above (customized for your additional field name) to display your cost for the event.
Let me know if this helps.
Thanks!