CREATE TABLE table_27934 ("meas. num." FLOAT, "passed" TEXT, "YES votes" FLOAT, "NO votes" FLOAT, "% YES" TEXT, "Const. Amd.?" TEXT, "type" TEXT, "description" TEXT)

How many types are there for the measure where there were 312680 yes votes?
SELECT COUNT("type") FROM table_27934 WHERE "YES votes" = '312680'
SELECT COUNT("type") FROM "table_27934" WHERE "YES votes" = '312680'