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 86% of the votes cast and 70% of a town's 30,000 voters cast a vote, how many votes did the mayor receive?
| 17,850 | |
| 18,060 | |
| 12,390 | |
| 13,650 |