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 89% of the votes cast and 64% of a town's 50,000 voters cast a vote, how many votes did the mayor receive?
| 17,920 | |
| 21,120 | |
| 27,840 | |
| 28,480 |