Hello! I have a fully functioning site written mainly with PHP that I would like to recreate with grav. It’s mainly just a large table that do calculations based on content in the rows to give a useful index value. Is there any way for me to do calculations like this is Grav, perhaps with Javascript? How would you go about this? I’ve only used Grav on two sites before and never had to do anything other than create a simple Blog 
edit: maybe a stupid question as I could just try to make a table and see what I can do after work today, but still very much open to suggestions and experience.