CREATE TABLE table_204_308 (id DECIMAL, "rank" DECIMAL, "nation" TEXT, "gold" DECIMAL, "silver" DECIMAL, "bronze" DECIMAL, "total" DECIMAL)

how many more golds did russia have than germany ?
SELECT (SELECT "gold" FROM table_204_308 WHERE "nation" = 'russia') - (SELECT "gold" FROM table_204_308 WHERE "nation" = 'germany')
SELECT (SELECT "gold" FROM "table_204_308" WHERE "nation" = 'russia') - (SELECT "gold" FROM "table_204_308" WHERE "nation" = 'germany')