user: ### NOW ANSWER:
Question: Lost of 18 had what sum of win %?
Columns: ['Nationality', 'Matches', 'Drawn', 'Lost', 'Win %']
Types: ['text', 'real', 'real', 'real', 'real']
Sample row: ['England', 145.0, 37.0, 39.0, 47.6]
SQL:

assistant: SELECT SUM("Win %") FROM "Table" WHERE "Lost" = 18.0;