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 90% of a town's 35,000 voters cast a vote, how many votes did the mayor receive?
| 17,325 | |
| 18,585 | |
| 21,420 | |
| 24,570 |