1단계(~100kWh):100kWhX55.1원=5,510원2단계(~200kWh):100kWhX113.8원=11,380원3단계(~300kWh):100kWhX168.3원=16,830원4단계(~400kWh):50kWhX248.6원=12,430원
당신은 어느 그룹입니까?