Answer:
A. 25% high
B. 12.5% decrease
Explanation:
A. The estimate relative to the actual turnout was ...
7000/5600 = 1.25
The estimate was 25% high.
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B. Relative to the previous election, the turnout was ...
5600/6400 = 0.875 = 1 - 0.125
The percentage decrease from the previous election was 12.5%.