CREATE TABLE table_204_807 (id NUMBER, "date" CLOB, "winner" CLOB, "runner-up" CLOB, "result" CLOB, "site" CLOB, "attendance" NUMBER)

what is the difference in attendees for maryland on february 10 , 1979 to february 11 , 1978 ?
SELECT ABS((SELECT "attendance" FROM table_204_807 WHERE "date" = 'february 10, 1979') - (SELECT "attendance" FROM table_204_807 WHERE "date" = 'february 11, 1978'))
SELECT ABS((SELECT "attendance" FROM "table_204_807" WHERE "date" = 'february 10, 1979') - (SELECT "attendance" FROM "table_204_807" WHERE "date" = 'february 11, 1978'))