CREATE TABLE table_2276 ("Constituency" TEXT, "Electorate" FLOAT, "s Spoilt vote" FLOAT, "Total poll  ( % ) " TEXT, "For  ( % ) " TEXT, "Against  ( % ) " TEXT, "\\u00b1 Yes side 2008  ( % ) " TEXT)

When 27,822 (72.3) is the percentage for how many electorate measurements are there?
SELECT COUNT("Electorate") FROM table_2276 WHERE "For (%)" = '27,822 (72.3)'
SELECT COUNT("Electorate") FROM "table_2276" WHERE "For (%)" = '27,822 (72.3)'