CREATE TABLE table_204_164 (id NUMBER, "branding" CLOB, "callsign" CLOB, "frequency" CLOB, "power  ( kw ) " CLOB, "location" CLOB)

what is the difference in kw between naga and bacolod radio ?
SELECT ABS((SELECT "power (kw)" FROM table_204_164 WHERE "location" = 'naga') - (SELECT "power (kw)" FROM table_204_164 WHERE "location" = 'bacolod'))
SELECT ABS((SELECT "power (kw)" FROM "table_204_164" WHERE "location" = 'naga') - (SELECT "power (kw)" FROM "table_204_164" WHERE "location" = 'bacolod'))