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 45% of a town's 21,000 voters cast a vote, how many votes did the mayor receive?
| 7,466 | |
| 5,387 | |
| 8,505 | |
| 8,222 |