How do I calculate the total of products selected?

My theme seems to be upsetting the form's display. I have contacted the theme author, however if you know a css fix please let me know.

In your Purchase Order form https://www.jotform.us/form/63105837052148 make sure that Show Total is enabled in the tool.

This should show the order total then without the need to use the calculation field.

Example:

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We will resolve the other problem separately here https://www.jotform.com/answers/983464

Thanks.