CREATE TABLE table_name_40 (round INTEGER, pick VARCHAR(255), college_junior_club_team VARCHAR(255), player VARCHAR(255))
What is Sum of Round, when College/Junior/Club Team is Brandon Wheat Kings ( WHL ), when Player is Mike Perovich (D), and when Pick is less than 23?
    
SQL: SELECT SUM(round) FROM table_name_40 WHERE college_junior_club_team = "brandon wheat kings ( whl )" AND player = "mike perovich (d)" AND pick < 23