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 78% of the votes cast and 30% of a town's 20,000 voters cast a vote, how many votes did the mayor receive?
| 4,500 | |
| 4,320 | |
| 4,680 | |
| 3,660 |