Question

what does the turnout figure indicate

Answer 1

Turnout figure means the percentage of eligible voters who cast their votes in an election. It refers to the voter turnout in an election.  
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Answer 2

ANSWER:

The turnout figure indicates the percentage of eligible voters who actually cast their vote.

EXPLANATION:

   The People participate in "election is usually measured" as turnout figure. People participation in election is allocated and has been noted every time.

   Example the total votes for particular state minister is 50 and 209 for other minister, then the guy with 209 has won the election and has been voted by 209 voters. The "turnout figure is 209".