CREATE TABLE table_52935 ("Peak" TEXT, "Height  ( m ) " FLOAT, "Prom.  ( m ) " FLOAT, "Class" TEXT, "Parent" TEXT)

Tell me the total number of prom for height less than 615
SELECT COUNT("Prom. (m)") FROM table_52935 WHERE "Height (m)" < '615'
SELECT COUNT("Prom. (m)") FROM "table_52935" WHERE "Height (m)" < '615'