Table schema:
CREATE TABLE table_name_42 (gp_gs INTEGER, avg_g VARCHAR, effic VARCHAR)

Question: What is the lowest gp-gs that has an avg/g less than 234.3, with 410.80 as the effic?
SQL: SELECT MIN(gp_gs) FROM table_name_42 WHERE avg_g < 234.3 AND effic = "410.80"