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 62% of the votes cast and 80% of a town's 42,000 voters cast a vote, how many votes did the mayor receive?
| 28,896 | |
| 20,832 | |
| 21,504 | |
| 18,144 |