What was the max demand charge for the user with a tariff of 8.85?
create table table_25479607_3 (max_demand_charge___rs__kva_ varchar, tariff___rs__kwh_ varchar, PRIMARY KEY (max_demand_charge___rs__kva_))
select max_demand_charge___rs__kva_ from table_25479607_3 where tariff___rs__kwh_ = "8.85"