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_name_36 ( value__ VARCHAR, rank VARCHAR, _percentage_change_on_year VARCHAR )

### Question ###
What was the total amount of Value ($M), when the Rank was higher than 6, and the % change on year was -27?

### Accurate SQL ###

SELECT COUNT(value__) AS $m_ FROM table_name_36 WHERE rank > 6 AND _percentage_change_on_year = "-27"