CREATE TABLE table_57566 ("Coach" CLOB, "Season" CLOB, "Record" CLOB, "Home" CLOB, "Away" CLOB, "Win %" FLOAT, "Average  ( Total )  Home Attendance" CLOB)

What is the sum of all win% with average home/total attendance of 3,927 (19,633)?
SELECT SUM("Win %") FROM table_57566 WHERE "Average (Total) Home Attendance" = '3,927 (19,633)'
SELECT SUM("Win %") FROM "table_57566" WHERE "Average (Total) Home Attendance" = '3,927 (19,633)'