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 72% of the votes cast and 80% of a town's 42,000 voters cast a vote, how many votes did the mayor receive?
| 29,568 | |
| 17,808 | |
| 24,192 | |
| 19,152 |