Percentages are ratios of an amount compared to 100. The percent change of an old to new value is equal to 100% x \({ new - old \over old }\).
If a mayor is elected with 66% of the votes cast and 86% of a town's 21,000 voters cast a vote, how many votes did the mayor receive?
| 11,920 | |
| 11,017 | |
| 15,532 | |
| 13,184 |