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 55% of the votes cast and 30% of a town's 21,000 voters cast a vote, how many votes did the mayor receive?
| 3,465 | |
| 3,339 | |
| 4,788 | |
| 3,843 |