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 56% of the votes cast and 80% of a town's 30,000 voters cast a vote, how many votes did the mayor receive?
| 18,000 | |
| 12,240 | |
| 15,600 | |
| 13,440 |