user: Question: Name the win% for Chennai Super Kings for 2010
Columns: ['Season', 'Winner', 'Captain', 'Coach', 'League finish', 'Mat', 'W', 'L', 'Win %', 'Runner-up']
Types: ['real', 'text', 'text', 'text', 'text', 'real', 'real', 'real', 'text', 'text']
Sample row: [2008.0, 'Rajasthan Royals', 'Shane Warne', 'Shane Warne', '1st', 16.0, 13.0, 3.0, '81.25', 'Chennai Super Kings']
SQL:

assistant: SELECT "Win %" FROM "Table" WHERE "Winner" = 'Chennai Super Kings' AND "Season" = 2010.0;