user: Question: Name the total number of ERP/Power W for frequency of 89.3 fm and facility ID less than 40430
Columns: ['Call sign', 'Frequency', 'City of license', 'Facility ID', 'ERP / Power W', 'Height m ( ft )', 'Class']
Types: ['text', 'text', 'text', 'real', 'real', 'text', 'text']
Sample row: ['WMHI', '94.7 FM', 'Cape Vincent, NY', 40435.0, 5800.0, 'm (ft)', 'A']
SQL:

assistant: SELECT SUM("ERP / Power W") FROM "Table" WHERE "Frequency" = '89.3 fm' AND "Facility ID" < 40430.0;