CREATE TABLE table_204_164 (id DECIMAL, "branding" TEXT, "callsign" TEXT, "frequency" TEXT, "power  ( kw ) " TEXT, "location" TEXT)

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'))