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 90% of the votes cast and 90% of a town's 39,000 voters cast a vote, how many votes did the mayor receive?
| 30,537 | |
| 25,623 | |
| 31,590 | |
| 29,484 |