def return_one_percent(num, pop_size):
    """
    Returns either one percent of the population size or a given number,
    whichever is larger.

    :param num: A given number of individuals (NOT a desired percentage of
    the population).
    :param pop_size: A given population size.
    :return: either one percent of the population size or a given number,
    whichever is larger.
    """

    # Calculate one percent of the given population size.
    percent = int(round(pop_size/100))

    # Return the biggest number.
    if percent < num:
        return num
    else:
        return percent