{#
/**
 * @file
 * Theme override to display a view of unformatted rows.
 *
 * Available variables:
 * - title: The title of this group of rows. May be empty.
 * - rows: A list of the view's row items.
 *   - attributes: The row's HTML attributes.
 *   - content: The row's content.
 * - view: The view object.
 * - default_row_class: A flag indicating whether default classes should be
 *   used on rows.
 *
 * @see template_preprocess_views_view_unformatted()
 */
#}

{% set count = 0 %}
{% set index = 0 %}
{% for row in rows %}
    {% set var1 = row.content['#view'].style_plugin.render_tokens[loop.index0]['{{ created }}']|striptags %}
    {% set var2 = row.content['#view'].style_plugin.render_tokens[loop.index0]['{{ field_date_status45 }}']|striptags %}
    {% set timestamp1 = date(var1).timestamp %}
    {% set timestamp2 = date(var2).timestamp %}
    {% set differenceInSeconds = timestamp2 - timestamp1 %}
    {% set differenceInDays = differenceInSeconds / 86400 %} {# 86400 seconds in a day #}
    {% set count = count + differenceInDays %}
    {% set index = index + 1 %}
{% endfor %}

{% set roundedNumber = (count / index)|round %}
{{ roundedNumber }}