CREATE TABLE table_161591_2 (operating_profit__s$m_ VARCHAR(255), expenditure__s$m_ VARCHAR(255))
What was the opearint profit (s$m) associated with an expenditure (s$m) of 12,127.8?
    
SQL: SELECT operating_profit__s$m_ FROM table_161591_2 WHERE expenditure__s$m_ = "12,127.8"