def compare_diversity(avg_dissim_algo, avg_dissim_control):
    """
    Returns the percent change of diverity between normal recommendations vs. diverse recommendations
    
    Parameters:
    avg_dissim_algo (int): computed diversity of diverse recommendations
    avg_dissim_control (int):  computed diversity of normal recommendations
    
    Returns:
    int: percent change
    """
    percent_change = ((avg_dissim_algo - avg_dissim_control)/avg_dissim_control)*100
    return round(percent_change, 2)