user: Question: What is the sum of all win% with average home/total attendance of 3,927 (19,633)?
Columns: ['Coach', 'Season', 'Record', 'Home', 'Away', 'Win %', 'Average (Total) Home Attendance']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Jim Miceli', '1999', '3-2', '2-0', '1-2', 0.6, '2,940 (5,880)']
SQL:

assistant: SELECT SUM("Win %") FROM "Table" WHERE "Average (Total) Home Attendance" = '3,927 (19,633)';