Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_171748_3 ( change_over_same_quarter_the_previous_year VARCHAR, _percentage_trains_arriving_within_5_mins_of_scheduled_time__over_three_months_ VARCHAR )

### Question ###
What's the change over same quarter the previous year in the period when the 89.6% of the trains arrive within 5 minutes of scheduled time (over three months)?

### Accurate SQL ###

SELECT change_over_same_quarter_the_previous_year FROM table_171748_3 WHERE _percentage_trains_arriving_within_5_mins_of_scheduled_time__over_three_months_ = "89.6%"