CREATE TABLE table_203_158 (id DECIMAL, "date" TEXT, "time" TEXT, "opponent#" TEXT, "rank#" TEXT, "site" TEXT, "tv" TEXT, "result" TEXT, "attendance" DECIMAL)

what is the difference in attendance on november 7th and october 17th ?
SELECT (SELECT "attendance" FROM table_203_158 WHERE "date" = 'november 7') - (SELECT "attendance" FROM table_203_158 WHERE "date" = 'october 17')
SELECT (SELECT "attendance" FROM "table_203_158" WHERE "date" = 'november 7') - (SELECT "attendance" FROM "table_203_158" WHERE "date" = 'october 17')