CREATE TABLE table_34734 ("Team" TEXT, "Stadium" TEXT, "Capacity" FLOAT, "Highest" FLOAT, "Lowest" FLOAT, "Average" FLOAT)

Capacity smaller than 3,292, and a Highest larger than 812, and a Stadium of strathclyde homes stadium has what sum of the average?
SELECT SUM("Average") FROM table_34734 WHERE "Capacity" < '3,292' AND "Highest" > '812' AND "Stadium" = 'strathclyde homes stadium'
SELECT SUM("Average") FROM "table_34734" WHERE "Capacity" < '3,292' AND "Highest" > '812' AND "Stadium" = 'strathclyde homes stadium'