Question

there were 13,426 eligible voters for a certain election. On election day 8,206 people cast their vote. What was the percent of voter turn-out?

Answer 1

To find a percentage of a whole you must divide the number people in the desired set (people that voted in this case) by the total number of the population set (eligible voters in this question.

so 
$\frac{8206}{13426} = 0.611202...$

multiply the decimal by 100 to get a percentage of about 61.12% voter turnout