Table schema:
CREATE TABLE table_name_79 (win_percentage INTEGER, points VARCHAR, record__w_l_t___otl_ VARCHAR)

Question: Which Win percentage has Points smaller than 472, and a Record (W–L–T/OTL) of 140–220–40?
SQL: SELECT AVG(win_percentage) FROM table_name_79 WHERE points < 472 AND record__w_l_t___otl_ = "140–220–40"