SELECT a.insert_timestamp, a.audyt_table_field_old_value, a.audyt_table_field_new_value, ((audyt_table_field_old_value-audyt_table_field_new_value) / audyt_table_field_old_value) as ratio, p.products_model  FROM `audyt` a INNER JOIN products p ON (p.products_id = a.audyt_table_primary_id) WHERE audyt_table_field = "products_price" AND audyt_table_field_old_value > 0 ORDER BY ABS(audyt_table_field_old_value-audyt_table_field_new_value) / audyt_table_field_old_value DESC