avg_cnt = pd.crosstab(df['QUEUE'], [df['DAY'], df['HOUR']]).stack().fillna(0
    ).mean(1)
avg_pct = piv_df['EVAL'].mul(100).astype(int)
avg_tot.join(avg_cnt.to_frame('AVG_COUNT_PER_DAY_HOUR')).join(avg_pct.
    to_frame('AVG_PERCENT_EVAL_1')).reset_index()
How to add columns with the average percent and average count to the dataframe?