def focus_index(average_pages_visited_in_section, total_pages_in_section):
    """Return the focus index for a section of a website.

    Args:
        average_pages_visited_in_section (float): Average number of pages visited in this section of the website.
        total_pages_in_section (int): Total number of pages in this section of the website.

    Returns:
        Focus index as average_pages_visited_in_section / total_pages_in_section
    """

    return (average_pages_visited_in_section / total_pages_in_section) * 100