CREATE TABLE table_71718 ("Rank" FLOAT, "Player" TEXT, "Games" FLOAT, "Goals" FLOAT, "Goal Ratio" FLOAT, "Debut in Europe" FLOAT)

What is the largest goal ratio with Goals smaller than 0?
SELECT MAX("Goal Ratio") FROM table_71718 WHERE "Goals" < '0'
SELECT MAX("Goal Ratio") FROM "table_71718" WHERE "Goals" < '0'