I found this add-on and have tried to install it in a version 1.9.2 but it won't work.

http://support.statamic.com/discussions/general-questions-best-practices/2884-minus-a-variable-from-a-number

{{ subtract count="{products_amount_now}" from="{products_total}" }}

What's wrong?

Answered by Jason Varga! Go to answer.