CREATE TABLE table_203_7 (id DECIMAL, "pos." DECIMAL, "artist" TEXT, "single" TEXT, "year" DECIMAL, "sales" DECIMAL, "peak" DECIMAL)

candle in the wind had how many more sales than freed from desire ?
SELECT (SELECT "sales" FROM table_203_7 WHERE "single" = '"candle in the wind"') - (SELECT "sales" FROM table_203_7 WHERE "single" = '"freed from desire"')
SELECT (SELECT "sales" FROM "table_203_7" WHERE "single" = '"candle in the wind"') - (SELECT "sales" FROM "table_203_7" WHERE "single" = '"freed from desire"')