CREATE TABLE table_11727969_1 (peru_vs_world__percent_ INT, species_in_the_world VARCHAR)

what's the maximum peru vs. world (percent) with 9672 species in the world
SELECT MAX(peru_vs_world__percent_) FROM table_11727969_1 WHERE species_in_the_world = 9672
SELECT MAX("peru_vs_world__percent_") FROM "table_11727969_1" WHERE "species_in_the_world" = 9672