Answer: 53.1%
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Step-by-step explanation:
The change from 76.1 to 116.5 is 40.4
This means that 40.4 more million people voted in the second year compared to the first
Divide this difference (40.4 million) over the original amount (76.1 million) to get
40.4/76.1 = 0.53088 which converts to 53.088% and that rounds to 53.1%