Invoice totals not working

I have created a user, product and tried to generate an invoice. This works fine but the total on each invoice items do not get added to the subtotal and overall totals?

Could you be more specific? Did you tried saving the invoice? If yes, what happens. Please post a sample calculation or a screenshot of the invoice.

it will not let new users upload screengrabs.

Basically when i create a new invoice and apply a product to that invoice the grand total subtotal toward bottom right does not get filled in at all. When i go to download invoice it still says 0.00

You can upload images wherever you want, you can share a link here.

Did you saved the invoice before printing it?

I have the same problem too