Add multiple elements of Web App?

I have a web application that is a review web app. It allows a person write a review, choose a few different sizes, then write the review. All in all, a very simple web application.

I want to see the average rating based on reviews from total. In other words, to loop through every element of web application, take the side (side is a custom field), total ratings, take the total and divide it by the number of sides, thus giving you the average on your side.

That I'm stuck, I know how to loop through an element totalling ratings that it loops through each element giving me the total score that I can run and then liquid on it to get the average rating.

How do you do that?

What about this:

{module_webapps render="collection" id="reviews" filter="all" collection="reviews" template=""} 

{% assign divisor = 0 -%} {% assign sum = 0.0 -%} 

{% for review in reviews.items -%}     {% if review.rating and review.rating != blank -%}         {% assign divisor = divisor | plus: 1 -%}         {% assign sum = sum | plus: review.rating -%}     {% endif -%} {% endfor -%} 

sum: `{{ sum }}` divisor: `{{ divisor }}` average: `{{ sum | divided_by: divisor }}` 

Tags: Business Catalyst

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