CREATE TABLE table_49645 ("Governorate" TEXT, "Seats 2010" FLOAT, "Seats 2005" FLOAT, "In/de-creased by" FLOAT, "Percentage in/de-crease" TEXT)

Name the highest In/de-creased which has a Percentage in/de-crease of 100%, and Seats 2010 larger than 8?
SELECT MAX("In/de-creased by") FROM table_49645 WHERE "Percentage in/de-crease" = '100%' AND "Seats 2010" > '8'
SELECT MAX("In/de-creased by") FROM "table_49645" WHERE "Percentage in/de-crease" = '100%' AND "Seats 2010" > '8'